Depends which tyre you get. For eg PSS and AD08 I'd stick with 225 but you may be able to squeeze a 235 RE-11 in. What are your offsets?
BMW 135i N54 TWIN TURBO
Quarter Mile email@example.com - Street Tyres
Queensland Raceway Sprint 1:01:22 - Street Tyres
Queensland Raceway Clubman 1:04:74 - Street Tyres
Lakeside Raceway 1:03:97 - Street Tyres