E46 M3 tyre sizes

[BillyBob]

One would expect your rear 275 to be a 30 profile... which would make your front a 35 profile to keep it in balance.

You can get away with 245/35's up front - and while I'm not a fan of P-Zero's personally, many other people rate them as being a good tyre.

245's up front will indeed help with turn-in and overall balance - but bear in mind, you have to be pushing pretty hard to feel the difference.

 

[Rockstar786]

Thanks BillyBob,

You are right I would've preferred 275 or 265 section/30 profile tyres to keep the circumference front vs rear closer and the the gearing is a few percent higher than ideal with the 35 profiles on but the slightly taller sidewall does give a little bit more compliance over the bumps (and got a good price)

Little bit restricted to tyres that are almost just rubber bands around the wheel due to the 19" rim diameter