According to SEMA research, six of the top 10 best-selling engines are either four- or five-cylinders, spread across a wide range of top-selling models. This consistency helps specialty-equipment manufacturers reduce downstream costs.

Fullsize-pickup owners spend an average of $1,800 on their trucks, outspending their midsize counterparts who typically purchase about $835 on parts and accessories.

Crossover utility vehicles have outsold SUVs more than 3-to-1 since the beginning of the year, creating a unique opportunity for specialty-equipment manufacturers.

Trends from December 2008 to May 2009 show that more consumers are thinking about buying wheels, tires and suspension products then accessories or performance parts.

Social networking websites and forums provide enthusiasts with a car club-like experience in a virtual medium and allow for both general and dedicated conversation to individual makes and models.

Sales of new fullsize trucks may be down, but 64% of enthusiasts surveyed by SEMA said they bought their truck used—and spent on average more than $2,000 on performance parts and accessories.

A photo collection of Mazda project vehicles at the 2008 SEMA Show.

More than 50 drivers from NASCAR, IRL and NHRA, as well as entertainment and industry celebrities, are offering autographed cars at the SEMA Pinewood Drag Race.

New Import Security Filling (ISF), commonly referred to as 10+2, requires that 10 elements of cargo information be transmitted by the importing company or its agent at least 24 hours before goods are loaded onto an ocean vessel for shipment to the United States.

Despite sitting third in the points standings with 365, Greg Anderson has yet to pick up a win this season.