I purchased a 2021 Prius (2020 Anniversary Edition) with tire size p215 45r17. Love the car, hate the low profile tires on pothole plagued roads of Northeast PA. I have already had a complete blowout and have been searching everywhere for a donut-spare. Every single search I do returns as N/A for your model. Where can I locate a reasonably priced spare for this nodel?
The database will look at the standard equipment on your model, see it doesn't have a spare, and..., full stop. It's not that bright. So yeah, just get a regular fourth gen Prius spare. Or 3rd gen spare, which is 16" riim and tire combo which is actually closer to 195/65R15 OD. The fourth gen spare's 17" rim/tire combo has a bit smaller OD. Both will work, but I'd rather have the closer combo, and maybe a bit cheaper too?
I bought a used, great condition full sized wheel, put a new tire on it, then raised the rear floor (it needed a form of support around the tire) the few inches to account for the height of the full-sized spare. This way I know I can go on a trip and have a good chance of making it the entire way - like the 1,138 mile one-day drive I did two weeks ago. Too much of being out in the middle of nowhere for a donut spare on that trip.