B5 or B6 S4 Saloon? B5 v B6

[Scotland]

I'm looking at getting back into Audi ownership again after a few years with the Alpina.

Decent B5 S4 Saloons seem to be hard to come by so I'm considering going B6. Thoughts?

B5 v B6
Two turbos v V8
Easy to modify v better reliability
Rare classic looks v stunning looks!
Save a few quid on cost and petrol v go modern

Any other factors to take into account?

What do you prefer?!