Patrick, for me, engine size is reasonably irrelevant. More important to me (and I suspect most people here in the UK), is power, speed, handling.
I'd be quite happy with a ZT Xpower 1.1 if it meant that it was 500bhp and did 0 - 60 in under 4 seconds...
(Plus if it was a 1.1, I'd qualify for cheaper car tax....

)