The Grand National Roadster Show (GNRS) in Pomona, California, has concluded, marking the start of the custom-car competition season. The event, held annually, draws builders from across the country vying for prestigious awards that often set the tone for success at other major shows throughout the year.
A Legacy of Custom Car Excellence
GNRS originated in Oakland in 1950 as a showcase for “America’s Most Beautiful Roadster” (AMBR). The show’s name was chosen to elevate the image of custom builds beyond the rougher “hot rod” subculture of the time, even though the creations were still technically hot rods. To qualify for the AMBR award, a vehicle must be a true roadster – historically defined as a car without side windows or a permanent top.
The AMBR rules require the base vehicle to be a roadster from 1937 or earlier, based on an American production car, though the exact year, make, and trim are open. The 1932 Ford “Deuce” has been a frequent competitor, but the field remains diverse.
Beyond Roadsters: The Slonaker Award
In 1974, the founders of GNRS, Al and Mary Slonaker, expanded the competition with the Al Slonaker Award. This allowed for entries that did not fit the strict roadster criteria, opening the door for a wider range of custom builds. Past winners have included a 1977 Harley motorcycle and a 1948 Jaguar owned by Metallica’s James Hetfield in 2014.
The GNRS is more than just a competition; it’s a kickoff to the entire year of custom-car events, where winning here often translates into broader recognition and bragging rights for builders. Whether you win or not, the show provides a platform for creativity, craftsmanship, and a whole year to build toward future accolades.
