E30 Zone

Does anyone know what the difference is between a 325i and a 320. Is it only the size of the engine. Or have they for example different brakes, suspensions and handling.

I want to know because I'm thinking of buying a 525i engine and turbo-convert it and then put it in a 320, because that will be cheaper for me. Or is it better to buy a 325i at the beginning.

your gona have to uprate everything any way, so if it's a good shell then use it. but yeah they dont have much different.

One fundamental difference is drum brakes on the rear for the 320i.

drum brakes....ahem....some 320´s came with discs at the rear.....mine did!

Any E30 with ABS will have discs. All 325s have discs. All tourings have discs.
Buy a touring for the conversion. Better suspension, etc.,all round.