Everything above and also
You mention it is in good condition twice in two sentences right next to each other, you only need to say this once.
also this caught me as a little odd "I'm only selling it because I want to get something a bit smaller. Something like a toyota, scion, honda, mazda etc".... you know every auto manufacturer makes fuel economy cars right? I would just stick with "I'm only selling it because I want to get something smaller" and see what offers come your way.
you basically just want to give the main points and then "contact me for more details," you want to get people talking to you that are interested.