US financial magazine Forbes published February 1 its annual list of the world's most expensive cars, proving that exclusivity really does equal value.

The Koenigsegg Trevita took number one spot, clocking in at an eye-watering $2.21 million. Only three of these exclusive models will be made by Sweden-based Koenigsegg, hence the name; "Trevita" means "three Whites" in Swedish.

The Trevita is a white, diamond-coated version of the Koenigsegg CCXR, meaning that for the first time, the world's most expensive car runs on biofuel.

The regular CCXR appeared in seventh place on the list, with the CCX appearing eighth ? an impressive three top-ten spots for Koenigsegg.

Millionaires' favorite the Bugatti Veyron came in second place with its Grand Sport model. Production of the softtop began in spring 2009 and with a top speed of 406km/h, it is the second fastest car in the world. Number ten on the list, the SSC Ultimate Aero, pipped it to the post as world's fastest in 2007 at 414.31km/h.

Both cars had limited production runs ? only 150 Grand Sports were made, and 25 SSC Ultimate Aeros.

Forbes reviewed prices from all of the top end manufacturers and included only street-legal models that are currently in production.

Top Ten world's most expensive cars

Listed from least expensive to most expensive, followed by the official Forbe's rankings and prices.

10 - SSC Ultimate Aero

9 - Leblanc Mirabeau