Chopping and channeling

[2] Barris also pioneered a more advanced form, removing the B-pillar and turning the car into a pillarless hardtop in the process.

[3] Automakers themselves may lower the roofs of concept cars based on production models, as AMC did with its AMX-GT, to make them look sleeker and "racy", even if impractical for normal use.

Thus, the entire body rests closer to the ground without alterations to the suspension, giving the car a lower profile.

[5][6] In some instances, shops must also modify chassis components, and so may be constrained by local laws as well as safety considerations.

Channeling is popular among hot rod, lead sled, and minitruck enthusiasts, the last calling it body drop.