Originally Posted by
Staffi
Excuse my ignorance on this topic as I've never had such a spec, but is the cost of building a genuine 500 Bhp car A LOT cheaper?? I'm guessing the cost goes up hugely from 500 to 650 ??
Thanks

You could build a 500bhp RWD sierra pretty cheaply if you used a 302 V8 and two small turbos.