The Top Gear Cool Wall ranks cars in four categories, from Seriously Uncool to Sub Zero (which is really, really cool), using a highly unscientific method that no one can get an exact grip on. If you're hooked on trying to figure out whether a car is beyond uncool, like the Fiat Panda, or Sub Zero, like the Ford GT, then there's an app for that.
It's called "Cool Wall," and you can get it over at Apple's iTunes store. Looks like TG may have released the app before it was finished cooking, however: it's $1.99 and so far, the reviews are mixed, with purchasers complaining about things like cropped pictures of cars. The app page claims updates are on the way, but buyer beware in the meantime. Thanks for the tip, Bryan!
[Source: Top Gear via iTunes]