The
International Motor Show Germany or simply
International Motor Show, in German known as the
Internationale Automobil-Ausstellung (
IAA - International Automobile Exhibition), is the world's largest
motor show. It is held annually, with passenger vehicles (including some motorcycles) being displayed in odd-numbered years in
Frankfurt am Main, and commercial vehicles in even-numbered years in
Hanover,
Germany. Before 1991, the show was held solely in Frankfurt.