German tuner Kelleners Sport has put its perspective on the BMW Z4 sDrive35is without taking away from the car's natural beauty. Some of the features of the new tuning kit begin under the hood. The 3.0-liter twin-turbocharged inline six-cylinder unit will be getting a boost with an increased output of 400hp and 398 lb-ft of torque, up significantly from the already solid output of 335hp and 332 lb-ft.

The interior will feature aluminum pedals mated with velour floor mats and a three-spoke sport steering wheel. The inside is fitted with leather along with a variety of wood trim choices that are also available upon request. The wheels are available in either 19- or 20-inch dimensions with the option of Berlin or Hamburg rims. No pricing has been announced.