Any thoughts on buying a high-mileage (~80k miles) 2021 M3 SR+ like this one, for a college-bound child? The SR+ range would be plenty, the price seems lower than anything else I've seen, but the mileage is a bit concerning as it is getting very close to the Battery and Drive Unit warranty limit of 100k miles. They probably would probably keep the car beyond the college years, as long as it still served their purpose and still ran.