Sometimes the bar is mounted on the axle or its locating arms with short links to the chassis. Body roll can be unnerving on-road but does not necessarily detract from road holding and a succession of agile French cars stands witness to this fact. However anti-roll bars are common fitments on many cars. By resisting large differences in wheel movements it tends to unload the lower wheel which can lead to wheel spin. The Bucher Duro all wheel drive truck manages to get a similar effect with clever links and rockers on its de-Dion suspension.
More sophisticated systems use links for control together with some better form of spring.
A coil spring is just that. It is often mounted between a lower suspension wishbone and either the chassis or a chassis outrigger. A torsion-bar is a rod of spring steel that is twisted as the suspension moves. It is often used in conjunction with wishbone suspension, attached to the A-frame at one end and to the chassis at the other. The bar is usually installed neatly along the chassis rail.