I've been meaning to put this up on the Item of the Day for a while now. It's one of the most expensive crown items out there, and I decided I really needed one parked out front.
Seriously, what house is complete without a car parked out front? The rumor is that Marleybone bosses can also drop one of these from their loot tables. So if you get one that way, consider yourself lucky!
You know, I read in an article somewhere (can't find it now; thought it might be this, but that wasn't it) that in the future Kingsisle would like to make some of the housing items "useable." Wouldn't it be awesome if your car here opened up a driving mini-game for your house guests to play? Yup, it'd be awesome.