Darwin Holmstrom has written or co-written many books on cars and motorcycling, including the best-sellingBMW Motorcycles,GTO: Pontiacrsquo;s Great One,Hemi Muscle Cars,Camaro: Forty Years,Muscle: America's Legendary Performance Cars,Billy Lane Chop Fiction: Itrsquo;s not a Motorcycle, Baby, Itrsquo;s a Chopper, andThe Complete Idiotrsquo;s Guide to Motorcycles. He lives in Maple Grove, Minnesota.