Originally Posted by W///
What makes you say that about the E36? I would have thought it's the most reliable, much more so than the E46.
Interior falls apart, rear subframe issues, cooling system failures...the usual modern BMW stuff. The difference with the E46 M3 is that it does not seem AS prone to those failures. Although SMG E46s aren't THAT much better and then add in the VANOS issues.
Its all relative. I think the M3 has been one of the most reliable BMWs over the past 2 decades.