2007 Lotus Exige GT3 Concept Road Vehicle review and pictures

Posted on Wednesday, 7 March 2007 , 19:03:38 byAlina

Filed under LotusSupercarsConcepts

Lotus Exige GT3 Concept Road Vehicle

At the 77th Annual International Motor Show in Geneva, Lotus revealed the Exige GT3. This is a model that can deliver 275 PS and 258 Nm of torque and was a new showcase product derived from their race car performance division, Lotus Sport. It can reach a top speed of 160 mph. The engine features an oil accumulator unit that is called Accusump that assures that the engine oil pressure remains constant in case of extreme track use. Twin oil coolers complete the power-train package. The design includes RS14 sports brake pads all round, high grade silicone brake fluid, stainless steel braided brake hoses. It features a rear double shear track control arm brace that is provided to cope with different abuses during heavy track day driving.

A new breathtaking model has been launched by Lotus Car Ltd. The lap-record breaking Lotus Exige GT3, launched at the 77th annual International Motor Show in Geneva, Switzerland (6 th March 2007) was designed as a 275 PS (271 bhp / 203 kW)road vehicle. It can deliver more grinfactor than ever and there is nothing about this car that could limit the driver. Mike Kimberley, the Chief Executive Officer for Group Lotus plc affirmed that the new model was a new showcase product derived from their race car performance division, Lotus Sport. The aggressive stance of the car immediately reveals the racing nature of it since the track rear has a large width and the rear-wing is three-dimensionally designed. The performance of this car will amaze and reward all drivers with incredible road holding (developed with the help of its 2-way Ohlins adjustable dampers together with Lotus Sport adjustable front stabiliser bar and rear suspension double-shear track control arms) and stunning acceleration.
The aerodynamic shape of this car is conferred by the one-piece front clam-shell, the fully masked-wheels and wheel arch venting.

As for the engine of the car, it is the charge-cooled supercharged engine that produces 275PS (271bhp / 203kw) driven through ten inch rear wheels with 255 width tyres.
As for the ones who love speed, mention must be made about the fact that the maximum speed (257kph / 160mph) and torque (of approximately 258 Nm (190 lb/ft) at 7000 rpm )have been electronically limited. Still, no changes or limitations have been brought to the acceleration . This significant amount of extra power and torque now available together with the VVTL-i variable cam system ensures that there is a smooth and linear surge of power from low engine speeds all the way to the maximum 8000 rpm.
On road or on track, the car has extraordinary abilities of stopping due to the up-rated front breaks and break pads.
The Lotus Sport Ltd intends to develop the Lotus Exige GT3 into a full production car for limited markets, and the sale will start in 2007 with an approximate price of between £50,000 and £60,000.

The Lotus Exige GT3 promises a smooth and linear power surge from low engine speed up to the maximum 8000 rpm because of the great amount of extra power and torque that is now available with the VVTL-I variable cam system. The Roots-type Eaton M62 supercharger that does not require the use of the engine's oil since it is foreseen with a sealed-for-life internal mechanism, is run from the crankshaft and has an integral bypass valve for part load operation. In case of hard acceleration or high speed driving, the up rated fuel pump and the 4 high-capacity injectors add additional fuel.
An engine oil accumulator unit, that is called Accusump assures that the engine oil pressure remains constant in case of extreme track use. This Accusump is included in the whole package as an oil reservoir back-up .Twin oil coolers complete the powertrain package.

The Lotus switchable traction control system (LTCS) works through the engine, reducing power to maintain traction; it is active above 8 kph (5 mph) and reacts much more quickly than many brake-based systems.
The engine power and torque is transmitted to the lightweight aluminium C64 six-speed gearbox by a sports-type clutch plate and heavy duty clutch cover. This is carried out with the same perfectly spaced ratio as the Exige S. the standard fitting is an open type limited slip differential. The LTCS (Lotus switchable control system) works via the engine and reduces the power in order to maintain traction and it is active above 8 kph (5 mph), reacting much more quickly than many systems based on brakes.

But the C64 six-speed gearbox is not the only lightweight feature introduced by Lotus. Regarding the chassis structure, Lotus designed also a lightweight one of epoxy bonded aluminium alloy extrusions with crash structure, extruded aluminium door beams, integral steel seat-belt support structure and lightweight galvanized steel rear sub frame incorporating a structural shear panel.

The whole innovating system is supported by 5 5-spoke lightweight forged alloy wheels (front 7Jx16 and rear 10Jx17), embraced by Lotus Sport specific Yokohama A048 R LTS tyres (front 195/50 R16 and rear 255/40 R17). These tyres intend to maximize grip and achieve the ride and handling targets set ny Lotus.

Though very fast, the new model is stopped by the system brake including 308 mm diameter 2 piece aluminium belled cross drilled and ventilated front discs and 288 mm diameter cross-drilled and ventilated rear discs. AP Racing two-piece radially mounted 4 piston calipers at the front and Brembo single sliding piston at the rear.

Body
GT3 derived one-piece front clamshell and wide track rear clamshell with full length roof scoop design taken from the Cup Exige 255. New full width rear wing with integral end plates mounting to rear clam. Race style full width front splitter; standard Exige door and body sides retained. Multi element rear diffuser with carbon option.

The design includes RS14 sports brake pads all round, high grade silicone brake fluid, stainless steel braided brake hoses. In addition, the proven Lotus track tuned servo-assisted four-channel ABS system enhances braking performance and minimises stopping distance without taking over from the skill of the driver.
Fully independent suspension utilising unequal length wishbones; Öhlins 2-way adjustable dampers with coil over springs and Lotus Sport adjustable front anti-roll bar. A rear double shear track control arm brace is provided to cope with the expected kerb abuse during heavy track day driving.