I had 2 car loans. Still have 1. The current one has 0% and is due to be paid off in 9/23. The one I just paid off was .9% and was due to be paid off in 8/25. I was putting double payments down plus extra. So my $362/mo became $724+. What I plan to do now is take $362 and put towards my mortgage and the other $362 and extra and put in savings. I was paying more in interest than I was making on my savings and I just wanted to get down to 1 loan. So now if anything happens like loosing my job I have one car paid off the the other almost. Though, I didn't pay the loan off with one lump sum which I could have, I did pay off early without hurting my account while saving some money in interest. Just what I did. Doesn't mean it will work for everyone nor that it is the correct decision for anyone but myself. I could pay off the other loan too but with 0% I see no reason. So now, I can cut my mortgage time, save money on interest while saving some extra money too so I can save for a new house.
I did the same for my student loans. Anytime I got my tax refund I would but a few thousand up to maybe 6k toward it. When I got tuition reimbursement I put it directly down on the loans. When I paid off one of the individual loans and my monthly payment dropped I made extra payments to bring it back to what I was originally paying to cut the amount of interest I was going to be paying.