I just wonder what kind I am

Yesterday I was told that I am a car by Tim. He was explaining to me that some people buy cars that require a lot of maintenence and work and some cars you buy don't require much work at all.

Well, I USED to be a car that required a lot of extra maintence and work but now I am a better car. I don't require as much work-according to Tim.

I hope that even as a high maintenence car I was still a lemon-y version of a Mercedes SLK500. I could totally deal with being compared to a car if I was this car. And, by the way, I would totally love one of these cars... but if I say that too much around Tim, I might revert back to being the high maintenence car that I supposedly used to be. (But on a less high maintenence note, I am not picky. I would also take a VW toureg, any kind of a BMW, a Lexus 300, or a Volvo...)