16C Galibier: The four-seat sedan is expected to go on sale in 2013 for about $1.5 million. Only 300 will be produced.

The Galibier, which is made of carbon fiber and aluminum, will use the Veyron's 8.0-liter W16 engine but will employ superchargers rather than turbochargers--producing 800 hp.

Veyron 16.4: The limited-edition, two-passenger Veyron, which was introduced in 2005, is near the end of its 300-unit production run. So far, 260 have been built. The 1,200-hp, 268-mph Super Sport edition debuted this summer at a price of $2.2 million to $2.6 million, including shipping.