The Automotive Aftermarket Industry Week (AAIW) in Las Vegas must be the largest and certainly the most vibrant of all aftermarket events. It is a coming together of a variety of automotive trade shows that were once spread across the United States. As such it tends to reflect the varying healths of the different sectors and, in recent years, it has been the performance oriented SEMA Show that has buzzed more than the conventional replacement parts exhibition, AAPEX. Ian Wagstaff reports.