Very orange and very powerful is the best way to describe the Mercedes Benz SLR GTB tuning job from Sievers, which made its official debut at the 2011 Essen Motor Show late last week, where JustinsSupercars shot this footage.The Sievers creation is a car of huge numbers: 814 horsepower and a top speed 350 km/h. And if that wasn't enough, the torque curve tops out at over 1,200 Nm, while the weight has been reduced all the way down to 1.5 tons.
Sievers says they only used original parts ... [...]
Source: autoevolution