Serving as the successor onto the Challenge Stradale, the 430 Scuderia was unveiled by Michael Schumacher at the 2007 Frankfurt Auto Show. Aimed to compete with cars like the Porsche RS-models and the Lamborghini Gallardo Superleggera, meaning super light weight, it is lighter (by 100 kg/220 lb) and more powerful (515 PS (508 hp/379 kW) at 8500 rpm) than the standard F430. Increased power comes from a revised intake, exhaust, and an ion-sensing knock-detection system that allows for a higher compression ratio.[12] Thus the weight-to-power ratio is reduced from 2.96 kg/hp to 2.5 kg/hp.