[philofab]

It's easier to get a low roll center with a panhard but it's design causes the rear end to move in an arc through it's travel. The actual side to side movement is at most a half inch with a fair bit of travel. I've heard a few really good drivers can feel the side movement when driving hard but I've never been able to feel it.

The watts link is cooler looking and fairly simple to build but it's difficult to get the roll center as low with it (new reverse style watts links may correct this). It also keeps the rear end perfectly centered so it can coexist with a trianglated four bar and some other suspensions without binding (a proper rear suspention does not need two forms of lateral control though).

Anyone know how reverse watts links (like the fey kit above) effect roll center? I've never seen these kits before. I did see a kit for a late model car (forget which one) at the sema show that mounted the watts link above the axle on it's side. Seems like it would have a very high roll center.