2011 Lotus Evora S

Ahead of the official unveil at the Paris Motor Show on September 30th, Lotus announce the latest evolution of the award winning Evora – the Evora S and Evora IPS (Intelligent Precision Shift) option.
Lotus has taken the award winning* Evora and re-created it with a 350 PS 3.5l V6 engine to create the Evora S. Dany Bahar Lotus’ Chief Executive Officer summed it up beautifully when he said: “You don’t realise what you were missing from your driving experience until you get behind the wheel of the Evora S.”

So apart from the obvious power difference, how is the Evora S different to the standard Evora? It’s another question we put to the CEO (given that he’s spent a little time behind the wheel, we thought he’d be best placed to answer questions). This is what he said: “It’s the next level of Evora experience. It communicates with you better, the suspension setting has been fine tuned for added power and control so it responds even more to direction. It’s an instinctual car, the experience is pure.”
“We were proud of the Evora but we’re even prouder of the Evora S, I feel like it does the true Lotus experience justice. The really great thing is that as we move forward the standard Evora should also benefit from some of these developments.”

The Evora S comes with a sport pack as standard featuring a ‘sport’ button which allows the driver to control throttle response and activate the exhaust by-pass valve. The sport button also raises the instantaneous rev limit and changes the dynamic stability control settings resulting in a total experience change. There are cross-drilled brakes for improved cooling. And here’s a heads up for those who buy into the old adage ‘you can tell the men from the boys by the size of their toys’: the external emotion of the Evora S has been improved with a completely new active exhaust which means that at the push of a button the car sounds just as dramatic as it feels.

Commenting on the Evora S, Lotus Chief Commercial Officer Andreas Prillmann said: “The Evora S is a natural progression for us but more than that, it’s a taste of what people can come to expect from the next generation of Lotus cars. It retains core Lotus values such as performance through lightweight but it also gives more than that. It’s the perfect combination of top performance, style and comfort. Form doesn’t sacrifice function in the case of the Evora S.”

So there you have it folks, the next generation of Lotus Evora, the Evora S, set to be unveiled at the Paris Motor Show.

But that’s not all. In addition to the Evora S, Lotus also presents the IPS (Intelligent Precision Shift) option. This inception of the seven-time-award-winning (who’s counting? We are!) Evora sees an automatic 6-speed gearbox with Lotus developed transmission control with a 3.5 l V6 engine delivering 280 PS assuring a superior automatic driving experience.

The IPS version of the Evora allows the driver to switch between manual paddle shift and automatic drive modes. The driver also has the option of selecting ‘sport’ mode which showcases the Lotus sport driving experience allowing the driver to really feel each gear shift and be in complete control of the transmission.

Commenting on the development Dany Bahar said: “The Evora IPS is set to broaden the appeal of the Evora and reach out to a slightly different market. We hope it will be popular with established automatic locations such as Asia, the Middle East and the US. It’s been a long time since Lotus created an automatic and we’ve spent a great deal of time refining this one to make sure that it perfectly complements the Evora drive experience.”

Evora S Technical Specification

Model Evora S
Engine Mid mounted, transverse 3.5 litre DOHC V6 VVT-I
Emissions see below due to wheel options
Transmission 6 speed manual
Chassis Modular lightweight bonded aluminium structure
Steering Lotus tuned hydraulically-assisted power steering
Suspension Forged aluminium double wishbone suspension
Bilstein high performance gas dampers
Eibach coaxial coil springs
Performance data
Standard wheel option
Fuel consumption – urban 14.5 l/100km
Fuel consumption – extra urban 7.4 l/100km
Fuel consumption – combined 10.0l/100km
CO2 Emissions 235 g/km
19/20” wheel option
Fuel consumption – urban 14.6 I/100km
Fuel consumption – extra urban 7.6 I/100km
Fuel consumption – combined 10.2 I/100km
CO2 Emissions 239 g/km
Max power 350 PS / 257.5 kW @ 7000 rpm
Max torque 400 Nm / 295 lb ft @ 4500 rpm
0-60 mph 4.6s
0-100 km/h 4.8s
Maximum speed 172mph
Vehicle mass (unladen) 1437kg

Evora IPS Option Technical Specification
Engine Mid mounted, transverse 3.5 litre DOHC V6 VVT-I
Emissions 208 g/km
Transmission Electronically controlled 6 speed automatic
Chassis Modular lightweight bonded aluminium structure
Steering Lotus tuned hydraulically-assisted power steering
Suspension Forged aluminium double wishbone suspension
Bilstein high performance gas dampers
Eibach coaxial coil springs
Performance data
Fuel consumption – urban 12.6 l/100km
Fuel consumption – extra urban 6.6 l/100km
Fuel consumption – combined 8.8 l/100km
CO2 Emissions 208 g/km
Max power 280 PS / 206 KW @ 6400rpm
Max torque 350 Nm / 258 lb ft @ 4700rpm
0-60 mph 5.3s
0-100 km/h 5.5s
Maximum speed 155mph
Vehicle mass (unladen) 1436 kg

*Evora Awards

Car Magazine – Performance Car of the Year 2009
“There are executive saloons that don’t ride this well, super cars that don’t turn in so crisply, and surely no car on the planet steers like this. Lotus has managed to transfer everything that we love about the Elise to a bigger, more refined, more grown up platform…It couldn’t really be much better to drive – the Evora is nigh-on perfect. A winner on every conceivable level.”

Top Gear – Sports car of the Year 2009
“Its pretty, quintessentially British, fast and handles like a dream. Evora takes Lotus to a new place in terms of quality but more importantly delivers a sports car rush that puts other marques to shame.”

Evo Magazine – Car of the Year 2009
“It’s a magical thing across the ground, deft like an Elise, with exceptional poise and feel. What was telling for me was that, getting into it after any of the other finalists, it was even better than I remembered: a bit smoother, a bit quicker and even sweeter dynamically, too. It’s a beguiling car. … A quite brilliant car and worthy winner.”

Autocar – Britain’s best Driver’s Car 2009Editor’s Special Award for Excellence, Group Lotus
“The best here. Brilliant on the track. Nimble, delicate and forgiving. Even better on the road.”

iMotor – Most Rated Car of 2008
“It’s [Lotus Evora] ‘rated’ score of 95 per cent is truly impressive and enough to see it beat brilliant machines such as the Lamborghini Gallardo LP560-4 and Nissan GT-R.”

Sport Auto: (Readers Choice)
Best production sports coupe under €100k – 2nd place

Auto Revue:
Sportscar of the Year 2009 – 2nd place

About Lotus

The main operating subsidiary of Group Lotus plc is Lotus Cars Ltd, which has two operating divisions

– Lotus Engineering and Lotus Cars. Lotus Engineering is an internationally recognised automotive engineering consultancy based in Norfolk, UK. Global facilities include those in Michigan (USA), Kuala Lumpur (Malaysia), China and offices in Germany and Japan, with rapid expansion in new territories such as South East Asia.

Lotus Engineering provides comprehensive and versatile consultancy services to many of the world’s OEMs and Tier 1 suppliers, offering a full engineering service from initial concept and project design through development and integration of the complete vehicle to meet all worldwide markets and customers to full production. This includes third party ‘niche vehicle’ engineering and manufacture worldwide.

Lotus Cars builds world class, prestige, high performance sports cars for sale in 37 countries. These include the iconic Lotus Elise, the Exige, the 2-Eleven and Lotus’ latest model, the Lotus Evora. Lotus is a global high-tech company, expanding rapidly and committed to driving forward technology for both Lotus Cars and its Engineering clients, spearheading research into such areas as hybrids, electric vehicles and renewable fuels.

(Source: Lotus Press Release)

2010 Lotus Evora 414E Hybrid Concept

The Lotus Evora 414E Hybrid, so-named because this latest environmentally-focused technology demonstrator from Lotus Engineering produces 414 PS (306 kW) of power, promises breathtaking performance from a highly efficient propulsion system. The concept showcases new developments in plug-in, range-extended electric propulsion, new electronic technologies to enhance driver involvement, the adaptability of the Lotus Versatile Vehicle Architecture (VVA) that underpins the Evora 414E Hybrid and a dramatic new roof system and interior concept from Lotus Design. Through all of these aspects it ultimately demonstrates the exceptional ability of Lotus Engineering to integrate and develop advanced technologies for exciting, efficient, high performance niche vehicles.

The range extended electric drive of the Evora 414E Hybrid consists of two electric motors driving each of the rear wheels independently via single speed geartrain, integrated into a common transmission housing, thus enabling torque vectoring for stability control of the vehicle. Electrical power is stored in a lithium polymer battery pack optimised for energy density, efficiency and high power demand, mounted in the centre of the vehicle for stability and safety. Additional range is provided by the Lotus Range Extender engine, an optimised 1.2 litre, three-cylinder engine, designed specifically for series hybrid vehicles. The drivetrain is designed to combine astonishing performance with efficient, low emissions driving.

Driver involvement is enhanced by the incorporation of HALOsonic Internal and External Electronic Sound Synthesis technologies from Lotus and Harman International, which provide sound contouring within the cabin and improve pedestrian safety outside the vehicle. Integrated with the HALOsonic technology, the Evora 414E Hybrid also showcases a brand new technology from Lotus Engineering, a sports mode that simulates a 7 speed, paddle shift transmission that combines exceptional driver involvement for a hybrid sports car and optimised energy recuperation.

The Evora 414E Hybrid has been designed to highlight Lotus’ innovative electric and hybrid vehicle technology without distracting from the pure sportscar character of the Evora. The solution is innovative, instantly recognizable, beautiful and sporty. It demonstrates Lotus DNA.

Dr Robert Hentschel, Director of Lotus Engineering said: “Innovation has always been at the heart of Lotus and is needed now more than ever. The Evora 414E Hybrid is the perfect demonstration of Lotus Engineering’s core competencies: lightweight architectures, efficient performance, electrical and electronics integration and driving dynamics. The technology demonstrator represents an encapsulation of the advanced technologies that Lotus Engineering continues to develop to overcome the current environmental challenges facing the automotive industry and showcases the future direction that the sector is taking and why Lotus Engineering is perfectly placed to lead the technological development in this area.”

The Drivetrain

For the Lotus Evora 414E Hybrid, Lotus Engineering has developed a highly efficient, high performance drivetrain system consisting of twin motors each limited to providing 152 kW (207 PS/204 hp) of power and 400 Nm (295 lbft) of torque to each wheel via independent, single speed, reduction transmissions integrated into a single housing, enabling torque vectoring dynamic control of the vehicle.

The vehicle energy storage system is made up of the latest Lithium Polymer battery chemistry providing 17 kWH energy storage capacity. The battery pack is optimised for energy density, efficiency and high power demand, with over 100 kW discharge capability.

The Lotus Range Extender engine provides 35 kW (48 PS/47 hp) of power at 3,500 rpm via the integrated electrical generator and features an innovative architecture comprising an aluminium monoblock construction, integrating the cylinder block, cylinder head and exhaust manifold in one casting. This results in reduced engine mass, assembly costs, package size and improved emissions and engine durability. The engine uses an optimised two-valve, port-fuel injection combustion system to reduce cost and mass and can be operated on alcohol-based fuels and/or gasoline. The generator converts mechanical energy to electrical energy to replenish the battery pack charge and provides additional vehicle range in a small light weight package. The generator is also used as a motor to start the range extender engine. The low mass of the range extender unit (85 kg) and compact package makes it ideal for the series hybrid drivetrain in the Evora 414E Hybrid.

All the operation and management of the range extender engine, the power management of the batteries and motor control are controlled by Lotus’ electronic control units and software systems. Full energy management of all the operating systems is the key to maximising performance and operation while minimising energy consumption and CO2 emissions.

For everyday commuting journeys, up to 35 miles can be travelled using battery power. The battery can be charged overnight using a conventional domestic mains supply through a socket concealed by the rear number plate. This permits the vehicle to operate with zero tailpipe emissions. For longer journeys, exceeding the battery capacity, the highly efficient range extender engine is used as a generator to supply the motor with electrical power and top up the battery.

Lotus has used its own vehicle simulation tools to determine the size, capacity, power and performance of all the components in the drivetrain system to optimise the system operation. Overall this is far more energy efficient, weight efficient and cost effective than fitting the vehicle with a larger and more expensive battery, which for the majority of short journeys is a redundant weight, which increases energy requirements. With regard to the total lifetime CO2 emissions of the vehicle, including the energy required to manufacture and run it, the range extender solution has a lower overall CO2 footprint than a fully electric car of comparable performance and operating range running with a larger battery.

The Package

The Lotus Evora 414E Hybrid structure is the same award-winning, versatile vehicle architecture used on the Lotus Evora. The low volume architecture was designed with the upmost flexibility in mind. The Evora 414E Hybrid is a perfect example of how to integrate a compact packaged drivetrain, with excellent performance and range, while using this underpinning. The complete chassis has remained unchanged from the Evora which maintains the structural integrity and strength performance of the original car.

The structure progresses the Lotus ‘bonded and riveted’ technology with new and unique extrusions and folded panels, whilst providing production build modularity and lower cost repairs. The chassis has been designed for scalability so that it can be extended in width, length and height. The strength and stiffness of the low volume VVA chassis can be modified cost effectively by varying the wall thickness of the extrusions, without altering the exterior dimensions. The ability to lengthen or shorten extrusions with the option to tailor the chassis stiffness vastly increases the number of vehicles that can be developed from this vehicle architecture.

Driving Dynamics

The Lotus Evora 414E Hybrid offers exhilarating, all-round dynamic performance and takes advantage of Lotus developed torque vectoring dynamics. Torque vectoring, which is the capacity to generate different torques at each of the driving wheels, is particularly suited to electric vehicles and significantly reduces the conflict between stability and response.

A key benefit of separate motors to drive each rear wheel individually is that this facilitates a much higher level of vehicle dynamics control. Driving the wheels with different levels of torque can not only generate all the capabilities of a conventional ESP system using energy regeneration as opposed to brake application, but it can also actively drive each wheel forward at different rates, producing a turning moment at the rear of the vehicle in addition to the steering input.

This can be used to enhance low speed manoeuvrability and ease of parking but can also be used to produce a much greater level of straight line high speed stability. Incorporating lateral sensors the system also provides stability control capabilities and levels of steering response normally only associated with heavy and expensive rear steer systems. This can provide automatic correction of both understeer and oversteer characteristics. In addition, the standard method to provide high speed stability of designing the rear wheels to toe-in is not required as the torque vectoring system automatically provides this stability control, with toe-in increasing rolling resistance, lowering fuel economy and increasing tyre wear. Lotus‘ long history of active suspension control provides the core capability to develop this technology and provides extraordinary driving pleasure on the Evora 414E Hybrid.

Driver Interaction

The Evora 414E Hybrid provides less of a psychological step change for people familiar with high performance cars compared to other electric and hybrid sports cars. The car has a simulated paddle shift gear change offering ultra quick gear changes reminiscent of a dual clutch transmission, while actually single speed. This enhances the driver interaction with the vehicle and provides a driving experience similar to current internal combustion engine high performance sports cars. The Evora 414E Hybrid uses a column mounted paddle shift to simulate the gear change and a synthesised engine sound changes frequency with virtual gear selection. The drive torque is also modulated to simulate a physical feeling of a gearshift jolt.

The virtual gearshift simulation, like a conventional gearbox, is used to change the driving characteristics and response of the vehicle. The most significant aspect that this offers the driver is the ability to control the vehicle deceleration by simulating engine braking through a virtual downshift in gears. Unlike true engine braking, the Lotus system does not dissipate the energy of the moving vehicle through internal engine friction but uses the electric motors to regenerate the energy back into the battery. While many electric and hybrid vehicles provide engine braking, this is generally at a fixed rate or preselected rate. In some driving situations this can either be too aggressive, slowing the vehicle unnecessarily, or too light, requiring additional braking application. The Lotus system effectively allows the driver to select the appropriate level of regeneration by simulating stepping down by one, two or even three gears. The simulation of engine braking through both the gear noise change and the retardation of the vehicle is fully intuitive to a driver familiar with a conventional gearbox. The simulated gearchange capability can be selected for greater driving involvement or switched off for more relaxed driving.

The Evora 414E Hybrid uses the Lotus Engineering and Harman International developed HALOsonic suite of noise solutions. The first of which is Electronic Sound Synthesis. This generates engine sounds inside the vehicle through the audio system where it provides an exciting sports sound in line with the brand and nature of the vehicle together with a high level of driver feedback in an intuitive manner. In addition, it also generates sound on the outside of the vehicle through speakers mounted at the front and rear to provide a warning to increase pedestrian safety, which is especially important for electric and hybrid vehicles which can be difficult to hear at slower speeds.

There are four driver selectable engine sounds currently on the vehicle, two of which have been designed to have characteristics of a multi-cylinder conventional V6 and V12 engine. There is also a futuristic sound and a combination of a conventional engine and a futuristic sound, enhancing the brand identity of the vehicle as a step forward in electric vehicle design.

The addition of this Lotus patented simulated gearshift concept not only provides for an exciting and involving driving experience that customers would expect from a Lotus, but also enhances the driver’s control of the vehicle while providing the capability for more efficient operation through a greater use of energy regeneration.

The Design

The distinctive colour scheme and ‘floating’ roof have been carefully designed to accent the cars electric vehicle technology whilst complementing the iconic lines of the Evora.

Copper, a colour often associated with electrical systems, has been chosen for the car’s exterior and interior. A contemporary satin finish paint is complemented by electrical circuit inspired graphics that highlight the car’s key feature lines and the unique glazed roof panel. The newly extended glazed zone integrates seamlessly with the existing forms of the Evora whilst showcasing the key components behind the hybrid and electric vehicle technology.

The signature copper theme is consistently carried throughout the car from the dramatic seat stripes and instrument panel inserts to the copper callipers that nestle behind the carbon grey forged wheels. Inside the cabin a sense of quality and richness has been created by carefully juxtaposing the different tactile qualities intrinsic to leather, Alcantara and metal.

(Source: Lotus Press Release)