The passenger electric heated developed an electrical fault, caught fire and totally burned out the car.
Only owned the car 6 weeks.
Had covered 100,000 but was still an excellent car to drive, plenty of power, brakes good and steering very precise, excellent cornering.
Terribly heavy on fuel, even when driven slowly.
The dash I found to be not so good on this car; not very special considering it's an M3.
The radio/cassette/cd changer was also dreadful; very poor sound, even with upgraded speakers.
Passenger heated seat burned out the car, and after searching the web I am no the first owner to suffer this problem... not what you expect from BMW.
When driven @ 80mph in top gear, you get just over 30mpg - that's good for a 3.2 engine, especially a high performance model. What with the seat problem & the poor Mpg, it sounds as though you bought a lemon.
Well it least when it went wrong, it did so in style! Shame though.