Porsche has just released this trailer to promote its libidinous 2013 911 GT3 Cup car.
As well as the obvious aerodynamic enhancements, the 991-based racer is propelled by a near-identical version on the road car’s naturally aspirated 3.8-litre flat-six, which develops 338 kW (460 hp), a 7 kW (10 hp) increase over the 2012 engine.