Famous automotive designer Giorgetto Giugiaro went through a period of creating low-slung, angular sports cars, and he often used pop-up headlights on these vehicles to allow for a pointy nose that looked very aerodynamic.

As an example of this shape, check out Giugiaro's gorgeous body for the BMW M1. The pop-up lights let him give the machine a low nose that makes the rare BMW appear ready to slice through the air.