Should I fix my car or buy a new car

I have a 2008 Acura that I bought used 5 years ago. 179k miles. Paid off. While I love not having a car payment, I’m thinking I should trade it in. It broke down and probably just needs an alternator, but it has some strange electrical problems. Like it will automatically change the seat setting when I get in or roll the windows down for no reason. I’m worried it needs more than an alternator like there’s a short circuit somewhere draining the battery. It also needs a drive train that will cost $2800. I’ve been putting it off. I picked out a 2020 Acura, same model, with 25k miles. I can afford the payment, but should I do it?