What is the difference between a 2000 BMW 323ci and a BMW M3?

Answer 1

there is a huge difference, pretty much everything is different, a easier question would be what is similar. and the answer to that is pretty much only the looks on the outside and interier. now the engine, suspension, brakes, transmission, basically everything that makes a car perform the way that it does is different, in your case, the engine is a 323 is called a m52tu, and engine in m3 is a s54, these engines are competely different from one another, the transmissions, are also completely different, you may have a auto in a 323, however the m3 (depending upon year) does not come with a auto, and the manual trans for both cars are different, if the m3 is past 2002 i would get it, however i would also not recomend the 323, i would definitely get a 325 or better yet, a 330 coupe with the sports package, so 323 bad, older m3, not so good either, newer 2001 and up 325 330 series all good, be a little more specific with your question and i can help more...