Why is the Audi R8 known as the 'Iron Man' car?

I've heard people refer to the Audi R8 as the 'Iron Man' car. Is there any specific reason for this nickname? Does it have any connection to the movie or the comic book character?

The Audi R8's design was inspired by the Audi Le Mans Quattro concept car, which was unveiled in 2003. This concept car was later used as the basis for the Audi R8 and it bears a strong resemblance to the car that was featured in the Iron Man movie.

The Audi R8 gained the nickname 'Iron Man' car because it appeared in the 2008 movie Iron Man. Robert Downey Jr.'s character, Tony Stark, drives the R8 in the film.