To the best of my knowledge, a late Group B car has never raced a modern WRC car on a tight, twisty modern WRC stage or a fast, open Group B stage. A 1986 quattro S1 would not match a modern WRC car on a modern WRC stage. But how would a 300(ish)bhp WRC car get anywhere near a 600(ish) quattro on a forest fireroad? Whilst the quattro had big power, it was always a bit of lumbering beast, even in SWB form. The performance of Group B cars can be measured against modern rally cars by comparing results at National level in the UK, 6R4s running at reduced power can still beat modern cars. Mid-engine is worth a lot on tight stages.Originally Posted by MrKipling