The Mercedes-Maybach S650 Cabriolet, based on the open-top S-Class, with seating for four and powered by a 621 horsepower 6.0L V12 biturbo engine mated to a 7G-TRONIC seven-speed automatic transmission, is limited to 300 worldwide and 75 cars for U.S. buyers. Mercedes tells me to expect a price of around $300,000.
