Well since i don't have a car i'll talk about my snowmobile and motocycle.
1. after a ride on my bike, i usualy head over to my buddies house and power wash the mud off and polish the wheels.
2. i'm not very good with my snowmo, i don't wash it cause the snow does it for me.
3. my dad and i always give a good check up every month on them and every start of a season we give a proper run-down on them.
4. end of season we always drain oil and and gas. put mouse traps in by them(we stow in a potato cellar) and tell em a bed time story.