strut braces dont have to mount to the strut bolts itself. thats just one design. there are plenty of strut bars that just mount to the body. even some of the best strut bars for honda made my mugen and spoon mount to the body, neuspeed has a body mount bar, and others. its the location more than anything and the bar design. that location is where the bar works the best. its where the the body roll (and stress) takes place due to the movment of the wheels, struts. going into and coming out of turns. the strut brace just adds strength to the body and tightenes up the play on this area or the car. a cross brace can help this also. our car is a unibody so the body flexes under hard turns. a solid bar is better than one with bolts in it for easy mounting you know the ones that are in three peices, the bar and then the 2 mounting ends, the bolts add a stress point and a point for movement. our cars have the macphearson struts wich only require single bolt mounting, but there is no reason a strut bar could not be installed. by someone who knows how anyway lol dont just go drilling around

also the play has nothing to do with the single bolt mounting this is a common strut type to use. someone else already mentioned its a floating strutt design. hope this helps without being to technical
