I am considering purchasing a second hand BMW 330. I am looking at either an '01 or 02 model. The question i have is, what range of miles should i be looking for on the clock to make it a decent investment? I really want to be able to get at least 3-4 yrs trouble free driving i.e. no major mechanical problems etc. In peoples opinions, how many miles/kilometers do BMW's drive for without any troubles? If i was to buy a car with 75000 km on the clock, how many more km's could i expect trouble free? Thanks