mileage on your car
Does it count if it's not a Mopar? My F150 has 270K. Other than headgasket etc. 2 years ago, the engine's never been apart. Highest mileage car I ever had was an '84 Volvo 240 DL that had 285K when I killed the tranny.
More in the spirit of the thread, my parents bought an '84 Ram B350 when I was 15.. when I was 25, it was driven to the junkyard with 600K on the 225 slant, never been apart. Heck, if it had been apart (new rings, maybe), it'd probably still be around pushing a million.