'72 Panther, Kawi 440 engine. Ran the pizz out of it for years as a kid. Other than new track cleats every other ride, it was bulletproof. (And fun as he!! for a kid in Illinois)
'76 Yami Exciter 440. Would "go anywhere" compared to the heavier newer sleds guys were riding. 80+mph out of a 440 fanner, and ski spreaders!
'98 Cat ZRT 600. Only had it 1 year up in WI. Bought it as a insurance wreck w/ 400 mi, dude clipped a deer. After a new seat, hood, 1 pipe, handlebar controls and windshield, it was like new. Rode it about 4000mi that winter. It floated good in the powder (for a 121), waaay better than the XCR600 snow plow I had. Fast! Great suspension. Always started. Only rebuilt the clutches once that year. Only problem was the recoil starter bolts would vibrate loose and fall out. Didn't matter what kind of loctite I used. Got wrecekd in a car accident. (That's okay, 'cause I was in route to moving to CO and would have had to long track it. 151 RMK replaced it, saved some garage time for me!)