I've been told a vehicle is going to cost a minimum of $100 a month to own. If you are at that $100 range you are doing good. Doesn't matter if it's maintenance, depreciation, storage fees.
If you buy a new $30k car and own it for 10 years and sell it for $18k and never have to spend money on repairs you hit a home run (never going to happen)
If you but a $1000 car and spend $1200/year keeping it on the road, you hit a home run
If you buy a $25k 60's camaro and sell it 5 years from now for $28k but spent $9000 storing and maintaining it, you hit a home run.
My 265k mile rainier is rusty and costs me probably $100 a month in maintenance and depreciation but I'm cool with it. It's hardly depreciating at this rate and you notice a $75 part and 2 hours a month more than that $175 in monthly depreciation on top of normal wear and tear you would be paying for otherwise.
If it's not fun, doesn't do what you want or other personal reason I get it, but it's impossible to ever use a financial basis to justify a different aka 'newer' vehicle.