You'd have to be a special sort of person to drop more than a million dollars on a car that's not road-worthy. Meet the Aston Martin Vulcan: one of the world's most expensive cars that is not designed to be driven anywhere aside from a race track. If you've never seen this hypercar in real life, it's difficult to imagine just how sleek it looks on the track. When you've witnessed that, you'll understand where most of its talk (and price tag) comes from. The Vulcan was designed to pay homage to other Aston Martin vehicles and, to date, only 24 have ever been built. If you did manage to buy one of them, there's only one company in the world legally capable of making it road-worthy - Britain-based RML.The Aston Martin Vulcan is a two-door, two-seat, high-performance lightweight track-only car launched in 2015 by British luxury automobile manufacturer Aston Martin at the 2015 Geneva Motor Show.The Vulcan was designed by Aston Martin's creative officer Marek Reichman, taking inspiration from the then Aston Martin current models, such as the Vantage, the DB9 and the One-77. Production totalled 24 cars, with each priced at US$2.3 million. One was included with the penthouse of Aston Martin Residences tower in Miami.