Despite the prodigious performance and track capability, Lotus says the Exige remains usable and compliant as a road car, with the quality of the fit and finish, build and attention to detail improved throughout.
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The weight saving includes a new access panel, new rear light designs, new rear wing and diffuser (with airblades, a Lotus first), the lightest forged alloy wheels on the market, a polycarbonate rear window instead of glass, a lithium ion battery and carbonfibre sports seats, with the maximum weight saving coming from selecting further lightweight options such as the titanium exhaust and removable carbonfibre roof panel in place of the standard soft top.
The new aerodynamics package includes a new front splitter with lip spoiler, barge boards, a large fixed rear wing and the diffuser, along with various aero-improving flourishes on the rest of the body. A total of 140kg of downforce is achieved at maximum speed, representing a 60% improvement over the Exige Sport 350 but without increasing drag.
The chassis remains untouched but Lotus has fitted Michelin Pilot Sport Cup tyres to further improve grip. The tyres are 10mm wider at the front than on the Exige Sport 350, while high-performance brakes with grooved discs are sourced from AP Racing.
Lotus offers an optional Track Pack on the car, including two-way adjustable Nitron dampers and adjustable Eibach front and rear anti-roll bars.
Lotus has improved access into the car by lowering the sills by 1cm. For the interior, where Alcantara trim is standard, Lotus has fitted a new infotainment system that includes Bluetooth - a first for the Exige.
For the drivetrain, Lotus has given the Toyota-sourced 3.5-litre V6 engine an extra 30bhp and 7lb ft over the Exige Sport 350, giving peak outputs of 375bhp and 302lb ft. More torque is now delivered higher up the rev range, allowing 178mph maximum speed to be achieved in sixth gear rather than the fifth, as in the Exige Sport 350.
A six-speed manual gearbox with an open gate design is standard, while an automatic version will arrive next spring, although take-up of that is expected to be small. The transmission is fitted with an oil cooler to allow for extended track use.
The model is now on sale ahead of deliveries early next year, priced from £67,900, an increase of around £11,000 over the Exige Sport 350.