What's the highest mileage you've gotten out of a car that you abused the crap out of?
I had a '96 Geo Prizm (almost a Corolla clone) from new, after 11 years I was ready for a new car. At 100k miles, I stopped doing oil changes (however I would top it off as it got low), and ignored all other maintenance. The car continued to run another 4 years, and about 50k miles before I gave up on trying to kill it. It surprisingly still passed emissions inspection when I got rid of it.
EDIT - make it a little interesting and share how you abused the crap out of your car... #cars