Cayenne Turbo, with its 4.8-litre V8 biturbo delivering maximum output of 500 bhp (368 kW) and now consuming just 11.5 ltr/100 km (equal to 27.6 mpg imp) in the New European Driving Cycle, again 23 per cent less than the former model (14.9 ltr/ 100 km, equal to 19.0 mpg imp).