Under the hood, the 6.2-liter V8 engine has been outfitted with a supercharger, a revised ECU, and a stainless steel sport exhaust system. Thanks to these tweaks, output climbs from 426 hp (318 kW / 432 PS) and 420 lb-ft (569 Nm) to 556 hp (415 kW / 564 PS) and 488 lb-ft (662 Nm) of torque. This enables the car to run from 0-100 km/h in 4.2 seconds and hit a top speed of 305 km/h (190 mph).