I think the harmful effects of sitting are overly exaggerated by most people. Rubber doesn’t need “exercise.” In fact, if you read Canada’s technical paper on rubber preservation here, use only stresses rubber more.
I would much rather buy a 25k miles $10k car than a 100k miles car that’s several years newer. OP, your car has a lot of life left in it.
I would much rather buy a 25k miles $10k car than a 100k miles car that’s several years newer. OP, your car has a lot of life left in it.