It's not everyday that the opportunity arises to buy a car that is truly one of a kind, and it's even rarer for that car to have once held the title of fastest in the world. However, that is exactly the claim with this 1995 Lotec Mercedes-Benz C1000 that is up for auction on eBay Motors As the story goes, the C1000 was originally built at the behest of an oil tycoon in the United Arab Emirates in 1990 at a cost of $3.4 million. It took five years for Mercedes-specialist tuners Lotec to develop and deliver the car, but when it did, it laid claim to the pinnacle of supercars at the time. The supercar started with a bespoke carbon fiber monocoque with an integrated safety cell and covered it all in carbon fiber body panels. In the middle, Lotec placed a 5.6-liter, twin-turbocharged Mercedes V8 – with a claimed 1,000 horsepower – mated to a Hewland five-speed manual transmission with a three-disc dry clutch to get that power to the road. Top speed of the 3,263-pound coupe was claimed at 268 miles per hour, although it's unclear whether anyone ever actually reached anywhere near that figure. Either way, acceleration to 60 mph is stated at a believable 3.2 seconds.The interior consists of two red leather racing seats with three-point harnesses. While the cabin is certainly sparse, it offers some comforts including air conditioning, adjustable pedals and an adjustable steering column. The odometer shows just 1,601 miles on the car.As a one-of-one car, the C1000 has been pretty easy to keep track of. It was for sale on eBay Motors for $350,000 when we last it in 2006 , and we've even located a 2011 video of the car running and driving on YouTube (check it out by scrolling below ). Currently, the top bid on the auction is $80,100 with the reserve not met and two days to go. Good luck getting it registered for the road, but hey – if you can afford the car, we're guessing you can afford to rent a track, too.