i don't see nothing wrong with the panhard bar. good enough for nascar, good enough for me. most late model racers don't know what a Watt's linkage is. i agree with the 4 bar. you can make a car do most anything you want it to do with them. i used the panhard, 4 link, on the st. at the drags and round track. in 1990 i built a camaro 502 cu.in. for a friend of mine that was the fastest st. car at richmond dragway that yr. and we put ladder bars and a panhard bar under that. hooked those st. tires up big time. drive it to the track, turned 10.8 sec. and drive it home. to race you had to be closed up, st. tires and st. insp.