Originally Posted by rldzhao
And at the point when you will need roll protection, get at least a half cage/roll bar from a REAL racing team with proper reinforcements. I've seen way too many half-assed, temporary/removable designs out there that make absolutely no sense at all and would probably do more harm than good.
Exactly... a million better things to weld a roll cage into than a beautiful street car E92 M3 unless you are going sponsored racing with it... and by the sound of OP's post he is just getting into it.
You really have to irrationally want to race an M3 in an amateur series and have the bankroll to support it...
could have more fun in something cheaper and purpose built