McLaren's newest supercar it is a 616bhp convertible, McLaren MP4-12C Spider. The supercar has a tweaked 3.8-litre twin turbo V8 engine controlled by a seven-speed dual-clutch automatic gearbox.
Acceleration - 0-62mph (100 km/h) - takes just 3.1 seconds (when fitted with Pirelli P Zero Corsa tyres), the same as the coupé. Fuel consumption and emissions also remain the same, returning 24.2 mpg (11.7 l/100km) on the combined cycle and 279g/km. The figures are much better than most high performance convertible sports cars, in keeping with McLaren's commitment to class-leading fuel efficiency. Maximum speed is 204 mph (329 km/h).
The Ferrari 458 Challenge has made its world premiere debut in Maranello during the Annual Dealer Meeting, a traditional event that brings together the representatives of Ferrari's international sales network.
The direct injection 4497 cc V8 remains strictly in production tune, with an output of 570 hp at 9,000 rpm. That said, modifications have been made to the gear ratios and calibration of its dual-clutch F1 gearbox to guarantee higher torque at lower revs. The Ferrari 458 Challenge is also equipped with the E-Diff electronic differential already employed on the road-going version, a first for Ferrari's track-only cars.
Ferrari's official 0-100 km/h (62 mph) acceleration is 3.35 seconds, while top speed is over 325 km/h (202 mph), with a fuel consumption in combined cycle (ECE+EUDC) 13.7 L/100 km (20.6 mpg-imp; 17.2 mpg-US) while producing 320g/km of CO2.