Assuming your looking at an E36 M3, the LS1 FC would be a cheaper alternative. It has better weight distribution than stock (that means near perfect 50/50, also weights the same), the reliability and power potential of the LS series motor. Not to mention the FC is a damn good chassis with a good aftermarket. To me thats the makings of a good car, but if you're one of those that hates American motors in import cars, to each his own I guess.