JB007x

Audi RS 5 Engine Speculation and Rendering I'm fairly sure it wont be turbo-charged! In this class Audi wont turbo-charge before BMW, which will probably happen next time round (particularly as the next M5 will be a V8 to meet new emissions legislation). I suspect it might be a reworked version of the 4.2 V8 with output up to 450BHP or - and probably most likely - the 5.2 V10 as in the new R8 V10 with 518BHP! 518BHP seems excessive for it's class, but consider the RS6, both it's main rivals - the BMW M5 and the Mercedes E63 AMG - have an output of ~500BHP, but the RS6 has 580BHP!! Audi want to be top dog! They will probably do this with the aim/intention of being the new leader and the one to beat...