The Evora has been designed with global automotive regulations in mind, and future derivatives are planed, these including amongst others, a convertible. The Evora will be hand crafted and built on a dedicated new assembly line within Lotus’s advanced manufacturing facility at Hethel in the east of England; capacity limitations will restrict production to approximately 2000 cars a year, ensuring the dynamic new sports car’s rarity and exclusivity.

Design

Designed in-house by Lotus Design, Head of Design, Russell Carr, explains ‘Project Eagle’s dynamically sculptured form and dramatic proportions communicate visual drama, speed and agility even when the car is standing still. Sportscars are primarily an emotional rather than a rational purchase and so the design must seduce with its beauty and distinctive character. However, the modern customer also demands that the product offers real-world usability as well as exotic imagery. Therefore every element of the car’s exterior and interior has been carefully designed to create a product that offers comfort and convenience as well as traditional performance car attributes.’

A design language of dynamic lines and fluid surfaces that flow from the ‘Lotus –mouth’ and over the length the cars toned form are unmistakably ‘modern Lotus’. They instantly convey a sense of agility and athleticism that is intrinsic to the car’s driving persona. On Project Eagle they are complemented by the distinctive wraparound visor screen but have been subtly tailored to suit the more sophisticated character of the car, optimise high-speed aerodynamics and artfully disguise the unique 2+2 layout. The cab forward proportion combines with muscular haunches and optimised intake detailing to instantly inform the viewer that this is a serious mid-engine sportscar. Elsewhere a Lotus philosophy for combining function with beauty is evident in the downforce generating, top exit radiator vent, rear diffuser and rear wing.

Inside the car the forms echo the exterior with fast moving surfaces that wrap around the cockpit cosseting the occupants, the contrast colour band that flows from the instrument cluster and sweeps around the cabin highlights this thémé. ‘We recognise that ‘touch’ not only assists with driving enjoyment but also conveys messages about quality and therefore great attention has been paid to all the areas where the driver interfaces with the car.’ Carr explains. Figure hugging adjustable sports seats and flat-bottomed §teering wheel instantly communicate the driving potential of the car. Project Eagle employs premium quality material and finishes to create an exclusive, British handcrafted ambience that is unique in this price §egmènt. Modern, precision-engineered aluminium inserts and hi-fi quality, edge-lit switches are brilliantly juxtaposed against the traditional contrast stitched leather panels.

Technology

In a world launch by partners Alpine, Project Eagle boasts a truly cutting edge in-car entertainment and navigation system. The multi-media system features a 7in touch-screen providing advanced audio, satellite navigation, Bluetooth hands-free telephone and iPod® connectivity functions; the screen also serves as a monitor for Project Eagle’s optional reversing camera. The satellite navigation element of the system has a removable hard-drive, allowing you to programme it from the comfort of your home or use it as a roaming satellite navigation unit and MP3 player.

The Alpine audio set-up is one of the most sophisticated automotive systems in the world. Called IMPRINT and using MultEQ sound enhancement technology, it is able to cancel out imbalances in the sound caused by different areas of the cabin – window glass, for instance, creates echoes, while carpets suppress mid-range frequencies – resulting in amazingly crisp, clear, undistorted sound reproduction wherever you are seated in the car. A bespoke progressive air-conditioning system developed by Bergstrom is standard on all models, while on-board tyre pressure monitoring will be either standard or optional depending on model and market. And in deference to the American market in particular, a module in the headlining will accommodate automatic garage and gate opening remote controls.

Engine

The exceptional working relationship that Lotus has enjoyed with Toyota over several decades, combined with the overwhelmingly enthusiastic reception for the company’s four-cylinder power units in the Elise and Exige, guaranteed the Japanese giant’s inclusion on the shortlist for the Evora engine supplier. The final choice was Toyota’s all-alloy 2GR-FE 3.5-litre V6 DOHC, with dual VVT-i (‘intelligent’ variable valve timing). Lotus has painstakingly developed its own T6e engine management software for this engine to optimise its compatibility with the unique requirements of the Evora to give a peak power output to 280 PS at 6400 rpm, while boosting its maximum torque to 342 Nm at 4700 rpm (prototype figures).

Changes to the engine management and exhaust systems also allow the V6 to rev more freely and provide rapid throttle response; feedback from the development team suggests that the strength of the engine’s mid-range torque means that gutsy performance will be easily accessible without having to thunder through to the redline. This makes the Lotus Evora a thoroughly satisfying car for everyday road use and a rewarding one when you just want to drive. The 2GR-FE V6 engine is mated to a manual six-speed gearbox, again Toyota-sourced. A close-ratio version of this gearbox is also currently under development for the even more sport-focussed driver. Many Lotus owners enjoy the blend of unique performance and efficiency that the brand’s cars offer. True to the Lotus value of ‘performance through light weight’ CO2 emissions are expected to be a class leading sub-225 g/km (prototype figures) while testers report fuel consumption in the region of 30+ mpg (pending formal homologation testing).

Interior

The rear seats of 2+2 versions of Project Eagle are intended for children or smaller adults on short journeys. To maximise comfort in the rear, there is foot-room under the seats in front, while both back seats feature ISOFIX mountings for secure child seat fitment. When unoccupied, the rear seats provide a convenient stowage area for briefcases and jackets, adding to Project Eagle’s appeal as an everyday car. The boot, which ingeniously features a fresh air cooling system to reduce the effect of heat ingress from the engine bay, will accommodate a set of golf clubs. A two-seater derivative of Project Eagle is planned and will have a luggage shelf in the back replacing the two rear seats.

Performance

At the time of unveiling, full performance figures for the new Lotus will not have been compiled on a production specification car, however Lotus has a further 6 months of development time to conduct these before Project Eagle is available to test drive. While for Lotus top speed is of less importance than stability at speed, early indications suggest a maximum speed of 160 mph; the 0-60 mph sprint from standstill is estimated at sub 5 seconds.

Chassis

The Evora’s chassis is an evolution of the Versatile Vehicle Architecture (VVA) from the Lotus APX concept vehicle previously showcased at the Geneva Motorshow, and allows for the development of a range of vehicles up to a gross vehicle weight of 1,900 kg. This architecture has been designed to be more applicable to mid-volume applications by utilising our low capital investment manufacturing processes. The Evora structure progresses the Lotus ‘bonded and riveted’ technology used in the Elise family of vehicles with unique extrusions and folded panels, whilst providing contemporary ease of ingress/egress, build modularity and improved, lower cost repairs.

The Low Volume VVA architecture has been designed 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. Front and mid engine installations have been considered, as well as hybrid and Electric Vehicle (EV) applications.

The Lotus Evora employs a composite roof as a stressed structural member to give an exceptional vehicle stiffness of 26,000 Nm per degree, thanks in part to the seatbelt anchorage frame’s secondary function as a roll over structure, and partly because the high-tech composite body panels are stressed items. However, despite this high stiffness, the complete chassis and modules weight just 200 kg (prototype weight), helping to keep the weight of the whole car to just 1350 kg (prototype weight).

To deliver this high performance structure, bonded and riveted high grade aluminium extrusions and simple and elegant folded sheet elements are used in the lower structure, building upon award winning research projects in this field. Lotus pioneered the technology of bonded aluminium extrusions for use in road vehicles and has successfully developed high performance cars for other car companies around the world. The central tub is attached to an extruded aluminium subframe at the front and a lightweight welded steel subframe at the rear. These subframe modules also offer advantages in terms of convenience and low cost of repair, and during manufacturing can be brought to the production line fully assembled, ready to be attached.

The high technology Lotus Evora chassis will be manufactured at the new Lotus Lightweight Structures facility in Worcester, ÚK. LLS employs 120 skilled engineers, technicians and sales staff and will manufacture all the Lotus aluminium structures, including those for the Elise, Exige, 2–Eleven and Europa and aluminium and composite structures and components for Lotus’s extensive global client base.

Suspension

The Evora suspension wishbones are forged from aluminium to reduce the unsprung mass. These are similar in weight, and stiffer than the steel items found on the much smaller Elise, Exige and Europa vehicles, and have a far higher vehicle weight capacity. They are attached to the front and rear modules via custom bushings. The Evora will use Bilstein high performance dampers and Eibach springs with unique dual path top mounts for optimized vehicle refinement. Hydraulically assisted power §teering is provided by a Lotus-tuned TRW §teering rack. All in all, the Evora delivers. It has incredible Lotus handling and provides unsurpassable driving pleasure. In fact, the Lotus the ride and handling team believes that the new car is likely to become a class standard bearer for speed and agility.

Safety

Lotus’ Project Eagle conforms to all regulatory standards and in addition boasts additional safety features; Lotus aluminium chassis technology applied to Project Eagle’s provides the car with immense inherent strength, particularly in regard to side impacts and a tubular steel seatbelt anchorage frame that also acts as a rollover structure. Anti-lock brakes are standard on all models, as are traction and stability controls; these systems have been specially developed in co-operation with Bosch to provide enhanced safety features whilst maintaining performance characteristics.

The switchable Lotus Traction Control (LTC) system has been developed simultaneously with the ABS and works through the engine management system to reduce power when required to maintain traction. Únlike many traction control systems, LTC has been tuned to complement the skills of the driver without taking over. The Lotus LTC is active above 5 mph (8 km/h) and operates much more quickly than many brake based systems. The system can be deactivated completely, giving no traction control intervention.