ZF has also been working on an independent front suspension for heavy trucks (they already produce one for buses), and I got to play with that as well at a test facility developed within a huge, mothballed German army training camp near Stuttgart. It includes a two-lane road around the outside of its many acres, 36 km long with twists and turns and hills and dales like any rural road. But no traffic, so it offered a great chance to test the various steering and suspension technologies that ZF was showing off to the world's press.
In fact, the engineers at Dana have also developed a prototype independent front suspension fitted to a Peterbilt 387 in the Roadranger test truck fleet.
