Been discussed 1000's of times at motorclubs around the country and most have come to the conclusion that a modern day WRC car would walk all over one.
What they did need tho' is proper driver ability and skill.
There MAY be a Group B Audi out at Croft again on the 28th doing demo runs at lunchtime, as sadly they are BANNED from competing now due to their alloy cages

So I guess we will never really get to know the true answer.