Ok dude
Well the M3Evo . is a great car
I had the E36 Evo Cabriloet
However the E36 has issues with the DOUBLE VANOS unit which is the head magic works etc
These are PRONE to going on high milers and its a £2k job etc
However many were done under recall in the first 3 years etc so if you buy one make sure its had the work done if not bear it in mind
The easiest way to check is ask a dealer to bring the history up on the car it should all be detailed ..
M3 Great car somewhat thirsty with a 3.2 Engine and EATS rear tyres
Nige