Rare supercars and sultan-worthy customs: The eBay Seven, 12/20/13

All in one spot: it's the absolute best of eBay's Motors section.

2013 Mercedes Sprinter VIP Land Jet
Land Jet is a company that takes vans like the Mercedes Sprinter and turns them into the rolling equivalent of high-end Gulfstreams. This one's got a 40" LED TV mounted on a driver partition so no one can see what you're up to. It's also got a fridge, hardwood floors, special sound-deadening insulation, a mini bar, cameras so you can see the outside world, and a quartet of massaging seats from a Maybach, wrapped in Bentley leather. Because luxury.

1960 Aston Martin DB4 GT Zagato replica for the Sultan of Brunei
When the Sultan of Brunei wants a car, it's generally a safe bet it's not going to be a normal car, so when he wanted a vintage 1960 Aston Martin DB4 GT Zagato, he had a few built from scratch, with improvements. Originally a race-inspired Italian-bodied Aston, the body on this one is the same as before, but built entirely by hand, just down the street from Aston's HQ. Also scratch-made: the entire chassis, complete with a modern suspension and a DB7's supercharged straight six. It's good to be the Sultan.

1970 Ford Torino King Cobra
As road-going prototypes go, you don't get much more subtly badass than this monster. It was a test mule for a NASCAR team, so it's more or less a Boss 429 Mustang in an aerodynamically-slickened Torino shell. Ultimately, it was deemed too fast, NASCAR changed the rules and Ford never moved past this prototype.

2010 Alessi AR-1
In 1979, a company called Alessi Fiberglass debuted a wild concept car at the NY Auto Show, ostensibly to brag about how great their craftsmanship was. Over 30 years later, they actually started producing the thing. It's a proper mid-engined supercar powered by a 750hp supercharged 'Vette engine. It's a little bit mad, and there's a lot of good to be said for that.

1972 Ferrari 246 Dino GT
Enzo Ferrari's lighter, smaller, sportier tributes to his late son have finally attained their rightful status as some of the best handling cars of the 1970s. This example only has 4800 miles on it in the 41 years since it was made, and even that wasn't good enough for an owner who had it stripped down and fully restored.

2013 Lamborghini Gallardo LP570-4 Super Trofeo
If you're the type of person that wakes up in the morning and thinks a basic Lamborghini Gallardo's merely a good start, and you're a good enough driver not to get yourself in serious trouble on track, the fully-caged, aerodynamically-enhanced, delightfully-insane Super Trofeo is the real world GT6/Forza Lambo you desperately need, provide you've got GT6/Froza-like credits in your bank account.

2009 Spyker C8 Laviolette
As a general rule, Spykers, with their 100yrs of aviation history wrapped into their design cues, are sweet cars from any angle. Open the doors, however, and they've got one of the best and most unique 1920s airplane-inspired interiors on the planet.