This is what I did when I bought my Spark. It made much more sense from a financial standpoint to pay for a new car a bit longer on a fixed monthly payment plan for a car that so far has no need for repairs other than an oil change and a 30K mile lookover than taking out a high interest loan for a used vehicle that might wind up needing to go into the shop every few months for part replacements.Yeah if this is your main concern just buy a Toyota, Honda, or newish Hyundai.
Even with 100k plus miles a 10 year old Honda or Toyota will be pretty much golden for at least another 100k.
Just get a third party inspection before you buy anything and check the tailpipe for smoke while it's running. Huge thing with any car is regular oil changes. Someone running 20k on Dino intervals because they are stupid just destroys a car.
Also if you can stretch your budget a little look at a Nissan leaf. Can be had for sub $10k lowish mileage and you will actually make back the investment on not buying gas.
You gotta think about it as investment. An $8k car with virtually no annual maintenance is better than a $6k car with $1k+ of shit going wrong every year. Or a hybrid/electric at $9k that's also reliable will save you the maintenance and a lot of gas money every year depending on how much you drive.
Also keep in mind typically the newer the car the better interest rate you get. So a $10k car at a sub 5% interest rate might actually be more affordable than you think vs a $6k car with 9% interest. Like do a 60 or 72 month loan at lower interest to keep the payment down because you just bought a 2012 instead of a 2008. Those 4 years and lower mileage will likely beat out a 10+ year old car even though you're paying for it for 1-2 years longer.
Like just me but it's much smarter to buy a 2012 or newer with sub 100k miles vs an 08 with more miles even if it costs you 4k more. You'll end up spending that 4k pretty quick on maintenance and gas on the older car anyway.
Sure, I'm paying more for the price of the car for a longer period of time, but I'm spending way less over the course of those 5 years because I'm not spending $250-500 every three months because something broke.