I think the Rack and Pinion was only used on the Super Beetles, which had lower a-arm and strut suspension...I may be wrong. R&P is heavily used on off road uses of the Type 1 torsion bar units though. I am thinking of using upper links in the form of an a-arm on my car eventually, in order to better control camber change in turns and give a place to attach air bag springs to make ride height adjustable while driving, plus weight saving.
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