Ive owned a 1990 735i for three years, and love it. Last year I replaced the head gasket at 195k (don't let the temp get near the red!) but it needed a new cam anyway. Last year we bought a 94 E320 wagon, for the third seat, and also love it--it seems faster than the BMW. The benz engine seems harder to work on as the dohc setup makes things more inaccessable; but thanks to this forum I'm getting there. With nearly twice the miles my 735 steers better than the E320--so that is my next project (after the wiring harness?) Without this forum (and roadfly.com) either car would be totally out of the question for me to own.
94 E320 Wagon, 170k, totalled in 2006
2002 BMW 525i Wagon, 75k
1991 BMW 318is (two of 'em)