This is somewhat embarassing...

I know not only the cars I've had but the amount I've driven them.
1995: 1972 Ford Thunderbird ($1200), 27,000 miles
1996: 1988 Subaru GL Wagon ($650), 27,000 miles
1996: 1985 Isuzu Impulse Turbo ($100, + many futile thousands), 18 miles
1997: 1985 Subaru RX Turbo ($1100), 5 miles (5 hour ownership, "runs mint" =/ "overheats and has no oil pressure")
1998: 1976 Ford Thunderbird, ($200 + hubcaps), 4,000 miles
1998: 1987 Mazda RX-7 ($750), 3 feet +- a few inches
1998: 1980 Mazda RX-7 ($750), 42,000 miles
2002: 1985 Mazda RX-7 ($400), 65,000 miles
2005: 1990 Nissan Sentra ($125), 35,000 miles (sold for $400!)
2006: 1989 VW Golf ($600), 55,000 miles and counting
2007: 1984 Mazda RX-7 ($450 + $200 transport, my half), 13,000 miles and counting
What is interesting is that, save the first T-bird and the VW, all of the cars have been white, or silver, or black.
The silver cars ('85 Mazda, '76 T-bird, '88 Subaru) tended to have a lot of electrical problems but ran like anvils.
The black cars (Isuzu, '84 Mazda) rarely run. The Isuzu suffered chronic and terminal head gasket issues and turned me off of piston engines in general and turbocharging in particular. (I owned it up until 1999) The Mazda has had four engines in it while I have had it; the original one blew a month after I put the car on the road, the replacement engine I put in (in 2008) blew a couple months after I got the EFI sorted out, the one after that was dreadful to live with, and the current one has seen 8,000 miles since installation this summer, mainly in driving to and from races...
It's been a couple years, it may be time to buy another car.
edit:
2009: VW Quantum Syncro Wagon ($800), 180 miles and counting
Oops, I have did it again...