2nd hand S3 low miles + new wheels (to improve looks) + remap an option?
A few choice mods could make an S3 stand out (subtley)
4wd certainly allows you to use everyone of those horses compared to an ED30
and of course ED30 are getting common

Test drive both and let us know , maybe even see if a remapped ED30 would take you out?
I think the S3 would be ultimately the better car with performance upgrades, but given initial cost + mods you are well into some other really nice machinery.