[Xist]

Is that their term?

Using a wind tunnel and computer projection, Pininfarina produced a body that generated sufficient downforce without excessive drag, while avoiding the aerodynamic excrescences that adorn so many out-and-out competition cars. Nevertheless, there was no mistaking the pugnaciously styled F40's antecedents as one climbed inside, the body-contoured seats, absence of carpeting and trim, and sliding Plexiglas windows only serving to reinforce its image as a thinly disguised race-car.

https://www.bonhams.com/auctions/22528/lot/363/