Why do people KEEP saying they'd rather slap on every available performance part on their 135i. I get that makes you feel better about yourself, but come on!
What is it about the monumental difference that a wider track, lsd, vastly superior suspension components and vastly superior brakes has on a car that people don't understand?!
You'd have to dish out HUGE amounts of cash to get the handling of the 135i anywhere close to the 1M!