May 13, 2008 Mercedes' high-performance division AMG has developed a new limited edition version of the SL 63 roadster. WIth only 200 destined to see the light of day, the SL 63 AMG Edition IWC combines its specially tuned, naturally aspirated, 386 kW/525 hp 6.3-litre V8 engine with a designo magno Kashmir white finish, an exterior carbon package and a a range of handling and performance enhancements in a vehicle that can hit 100 kmh 4.6 seconds from a standing start and has an electronically limited top speed of 300 kmh. Aside from the luxury timepiece that comes with the car, the "IWC" refers to the design collaboration between Mercedes-AMG and Swiss watch manufacturer IWC Schaffhausen, a relationship which began in 2004 with the CLS 55 AMG “IWC Engineer".

The interior of the luxurious roadster is fitted with Carbon matte trim as well as Tobago Brown nappa leather upholstery that creates additional visual and tactile highlights. The electronically adjustable AMG sports seats feature multicontour and memory functions, heating and an AMG-specific perforation pattern, a special design. In case anyone has lingering doubts about the car's exclusivity, there's also black AMG floormats with Tobago Brown leather piping, AMG door sills with white illuminated AMGlettering, and the IWC logo on the lid of the center console.

The handling and performance package starts with the two-tone, reduced diameter AMGPerformance steering wheel and silver-finish aluminum gearshift paddles. To this add forged 19-inch AMG light alloy, double-spoke wheels with a titanium gray finish and polished surfaces wrapped by sport 255/35 R 19 and 285/30 R 19 format tires, respectively.

The front axle is equipped with internally ventilated, perforated composite disc brakes (390 x 36 mm) that keep braking distances to a minimum and ensure the vehicle is extremely resistant to fading. Handling is further enhanced by a rear-axle, multi-disc limited-slip differential with a lock factor of 40 percent, as well as an AMG Performance chassis equipped with Active Body Control.

The 386 kW/525 hp V8 has a maximum torque of 630 Nm and is married to an all-new AMG SPEEDSHIFT MCT seven-speed sports transmission.

The accompanying watch is a “Grosser Ingenieur” (Great Engineer) watch from IWC Schaffhausen, which is designed to compliment the vehicle concept.

Customers will be able to order the SL 63 AMG Edition IWC beginning in fall 2008 with deliveries to commence in November 2008. No pricing details as yet ,but it's bound to be in the "if you have to ask..." category.