Audi R8 GT (Lake Forest, IL)
The Audi R8 was and still is the fastest production Audi that’s ever been produced and their only supercar. The R8 with its sculpted lines and unique exterior proved to be one of the most popular Audi models of all time. The unique build quality of the car and the super powerful engine were especially important factors. This unique billboard that went up in Lake Forest, Illinois alerts drivers that the first Audi R8 has been sold in the city, and that slow traffic should keep right (via Car & Driver).
The R8 was one of the most popular Audi sports cars ever built, and the billboard was part of the extensive advertising campaign that followed the release of the car. Audi has never been a company that advertises heavily but the R8 was a revolutionary car.