Although enthusiasts regard the E-Type->ke1246 as the most iconic and beautiful Jaguars->ke39 ever built, I think there's at least one other Jag that can match its distinction. I'm talking about the XKSS, a limited-edition, two-seat roadster based on the D-Type->ke1250 race car.

My reasoning is pretty much simple here. The XKSS has the gorgeous looks of the 1950s Jaguars, the racing heritage of the Le Mans-winning D-Type, and a track-prepped structure coming straight from the company's motorsport division. Add the fact that Jag built only 16 of these sports cars->ke506, and you'll understand why the XKSS is a coveted and expensive collectible.

The XKSS also benefits from an association with famed American actor Steve McQueen, who owned a British Racing Green-pained example and drove it around Los Angeles for years. Now resting its wheels in the Peterson Automotive Museum, McQueen's Jag just took a trip to Jay Leno's garage->ke3731, the place where the world's greatest vehicles are taken to be reviewed and showcased.

But unlike other cars that have passed through his garage, the XKSS seems to have mesmerized Leno, as the TV host can't stop praising the roadster enough throughout the 20-minute episode. Just hit the play button and you'll find out what we mean.

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