With 0% interest there's no incentive to pay it off any sooner but that also means that if you aren't paying sooner you aren't getting any penalty.

Instead, you can literally do anything else you want with the extra money you might have otherwise spent on paying off the loan early. You can invest it or just stick it in a savings account since those are pretty high-yield right now.

In today's high-interest financing environment, having a low interest loan around is practically an asset; take full advantage of it because it's going to be a minute before we see cars again being sold at 0% interest (unless car companies get super desperate)