Need to upgrade to LiFePO 4 batteries, as we expect ours to last 20+ yrs. Possibly longer if getting 6000 cycles out of them, and I'm being negative. Only half cycle a day, if that, so 12k days of cycles = 32 years.
For the car, I'm just hoping the rest last as long as the batteries & motors. As much as the wife drives, barring any oops, should last 20+ years after I'm long gone. Last car she'll ever own, hopefully.