For what?

A road car? or a race car?



Obviously there is more to the engines than just those numbers, but speaking broadly, most engines make peak BHP a little after peak torque has started to drop off, so you are probably looking at 8000rpm+ for the 600bhp one and quite possible 6000rpm for the 500bhp one.

So as a road car, the 500bhp one sounds to me like a nice option, especially if it was a cosworth and you are on standard gearing.

For a trackday / race car though, the 600bhp/400lbft one would be my choice



Thats based on the 600bhp one not being too "peaky" of course, there are far more characteristics than just the peak figures obviously.