Best high-performance used car for £35-45k

I am looking for a car that is eligible for PCP. So max 5-6 years old.

Options I've seen so far:

M3
M5
M340i
RS3
RS5
C63 AMG
Alpha Giulia quad Toyota Supra

Looking for a head turner, but want good power. I've had S3, A35 AMG and new M135i so need an upgrade in power. Not fussed about AWD, would be happy with RWD for more fun.

What's your opinions? Thanks.