i know the consensus is the RS4 engine with 425 hp. but why not the engine from the S6 and S8? it may weigh a bit more and only make 25 hp more but it produces much more torque. why not put it in the base R8 and then add the expected RS6 version of that engine as an option when the gallardo gets its next update? i know this idea flies in the face of the R8's historical inspiration- V8 powered historic sportscar from audi but why not? any takers?