As if the “regular” BMW M5 was not powerful or fast enough, the tuners from Kelleners Sport have developed an upgrade program for the hot sedan. Dubbed KS5-S, the car now features a new aerodynamic body kit that includes a trunk-mounted spoiler, a rear diffuser and update side skirts. Also new are the black alloy wheels and the mirror caps, while inside there are embroidered headrests, diamond-quilted leather upholstery and a sport steering wheel.
The KS5-S by Kelleners Sport has the same V8 4.4-liter twin-turbo engine but it has been updated in order to output 651 hp (660 PS / 485 kW) which is 99 hp (100 PS / 74 kW) more than the standard BMW M5. Thanks to this power boost, the KS5-S is capable of hitting a top speed of 205 mph (330 km/h).
Source: Kelleners Sport via WCF