Fisker Coachbuild's Tramonto and Latigo CS, penned by former Aston Martin Design Head Henrik Fisker, are based on the Mercedes-Benz SL55 AMG and the BMW 6 series coupé, respectively.

Based in Newport Beach, California, Fisker works with Dutch tuner Kleeman to modify customers' Tramontos to develop to up 610 brake horsepower, for a 0-60 mph time of 3.6 seconds.

Production begins in 2006. Fisker needs to sell 150 cars, annually, to break even.