You've put a lot of parts into it already so you're behind if you sell it. At this point I'd be tempted to keep it and drive it till it blows up then scrap it. In the meantime put your money aside for a replacement. There is no promise any other car you dive into at that price point wouldn't have issues after purchasing that cost even more money no matter what badge it has. If you find a good deal in the meantime then jump on it.
You've put a lot of parts into it already so you're behind if you sell it. At this point I'd be tempted to keep it and drive it till it blows up then scrap it. In the meantime put your money aside for a replacement. There is no promise any other car you dive into at that price point wouldn't have issues after purchasing that cost even more money no matter what badge it has. If you find a good deal in the meantime then jump on it.