Indeed.
The only problem with them is that the plastic can crack if it's hit hard enough, but it's no worse than crumpled metal.
Another nice thing with a mostly-plastic body (I say "mostly-plastic" because the hood, trunk lid, and headlight covers are metal) is that the car loses a lot of weight as a result. My Satty only weighs a ton and, as a result, the dinky 124hp engine actually manages to move that car pretty quickly.