over 135 hp per liter. if audi could do that with the V10 in the R8 that car would make 702 hp! let's see if they can at least get it to over 600 for the next gen.
Past- A4, TT, S4
Present- R8 V10
As much as I like it on paper, I will take the 360CS over any of these any day, even a 355 with Capristo exhaust would do the trick for me.