Should I buy this car and sell my old toyota?

So there is this Mitsubishi Outlander 2017 GT on Marketplace, in very good condition, 91,000 miles, for $8,200. And I think that I could maybe get like $3,000, $3,500 for my car. And if I ask my dad to loan me the rest, it's not that much money. So I feel like I could do a little something-something, pay him a monthly fee to pay it off. I figure if I pay 400-450 monthly I can pay it off with a year, also I don’t pay bills since I help my dad on my days off in his shop in exchange for that, since I built my apartment last year in his property.

He had previously offered to loan me a car but I wanted to keep my 2008 Toyota Yaris until it I no longer couldn’t.

From the pictures, it seems like the logo on the steering wheel is pretty worn off, and the seats are supposed to be black and red, but they look a little washed out. But I was thinking that if I bought a white car like that one, I would probably get red seat covers anyway. So I feel like it's a pretty good price. And seller said that on the description, that the reason why the low price is because the inside is pretty worn off. But I feel like I could do that. At least on the outside it looks brand new.

The thing is that my car lately has been asking for maintenance at least once or twice a month, and every time it's been like from $200 to $500, so it's nothing I'm not already paying for.

For context; I earn $330 a week, I put $40 towards an emergency fund for my son's expenses, I pay $100 for childcare, and then once or twice every month, I put $100 towards my Discover card.i currently owe 3.2k and it’s going down. I don’t overspend so I would say I am pretty comfortable since where I live is very low cost, if it weren’t for my current car expenses… I also get ebt and wic for now, I honestly just want something reliable and more spacious and comfortable for me and my son, since my car is small, a passenger in the front doesn’t fit unless they’re very short. If you have any other car ideas plz let me know.