Over the last several months I have fallen in LOVE with E30's!!!! I'm looking into buying my first, but I don't know for what I should be looking out for when it comes to the car's potential problems. I've got a budget for 4000$ dollars. The paint and interior problems don't concern me at all for those are easy to fix, but I don't want to buy a car that's going to cost me a ton of money to repair right off the bat. Any advice would be greatly appreciated!