Wished I could remember who said that regarding supercars similar shapes : "There's only one way to go fast".
Totaly agree, Audi stuned a couple of people winning with a diesel engine. We are quite familliar with diesel performances in Europe, but quite an eye opener with the North American crowd. I saw them 2 years ago, such a quiet car as they race by, the brakes are louder than the engine, their engine sound is covered by Penske's 2-3 corners away. Peugeot went that route too, 5.5L diesel 900lbs tq monster.