German tuners from Kelleners Sport studio have worked on top-end version of the roadster the BMW Z4 sDrive35is, making it even more powerful. Maximum torque at the same time increased from 500 to 539 Nm, but the improvement of dynamic performance tuning Z4 M in the studio are not reported. Recall that the standard version sDrive35is gaining a hundred places in 4.8 seconds, and its top speed is limited to 250 km/h. Outside roadster tuner did not touch, offering a setting of 19 or 20-inch wheels, as well as new springs that reduce the ride height of the car by 20 mm front and 10 mm – at the rear. Leather upholstery and interior wood trim can be made to order.