oooh nice choice.........other than the M3, the 2nd best choice for the 3 series is this one

TS if u r buying a 3 series, try not to get the 318i, although newer versions are a bit better than the old ones, it's still damn underpowered, hence the bad FC in every driving situation. and dont forget, u r buying a 2nd hand car, so prepare some back up budget for unforeseen incidents. i'm not saying buying 2nd hand is bad (actually i'm quite a firm supporter of buying 2nd hand), but there's sure some stuff u need repairing even if u've got a 99% great condition car. and don't prepare your budget ngam ngam for the price of the car only, or else u'll sure have some headaches when u ran out of cash to repair it. u can buy the car, but your car will be stuck at home because you are "out of budget".........

and since u asked, the engine can be swapped to a RB20/25det or RB26dett from a skyline or the 1jz/2jz-gte from the toyota aristo or supra, if u r mad on power