Gearbox: strengthened and prepared with rally gear ratio
Body: welded and strengthened shell with reinforced plates, Heigo cages and rollbar
Maurizio Rigo
"I'm sure I've driven the best Porsche 911 RSR Group 4 ever made!
This can be confirmed by all the drivers we left behind!
Anyway...you need a great man to build a great car!"
C. T. Ferrario
"The Porsche 911 RSR from the Sikkens Factory is something I had dreamt of for 3 years. Tested and praised by Walter Röhrl himself, this toy has given us joy and successes, by always classifying 1st except only in two cases, where a suspension setting was needed."
Robert Sikkens
"When Walter Röhrl signs the roof of your car, you know you've done something good!"