Porsche Club of America
356 Registry
Alfa Romeo Club of America
Amelia Island Concours d’Elegance
Aston Martin Owners Club
Automobile Magazine
Autotrader
Autoweek
Barrett-Jackson
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BMW Car Club of America
Bridjit Car Ramps
Bugatti Club of America
Car & Driver Magazine
Carsinpedia
Cars and Coffee
Concorso d’ Eleganza Villa d’Este
Steve Linden – author & appraisals
Corvette Club of America
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DuPont Registry
Excellence Magazine
Ferrari Club of America
Garage Detailer
Gooding & Company
Greenwich Concours d’Elegance
Hemmings Motor News
Hilton Head Island Concours d’Elegance
Jaguar Club of North America
Jay Leno’s Garage
KRUSE Companies
Lake Tahoe Concours d’Elegance
Lamborghini Club
Lotus Car Club
Maserati Club
McCall
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Mercedes Benz Club of America
Top Gear
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Mini Club
Monterey Historic Automobile Races
Motor Trend Magazine
Motorheads Performance
Mustang Club of America
Newport Beach Concours d’Elegance
North American International Auto Show
Pebble Beach Concours d’Elegance
Porsche Market Letter
Porsche Megastore
RM Auctions
Road & Track Magazine
Russo and Steele
Scotttsdale Corvettes
SCCA Sports Car Club of America
SEMA Show
Speed TV
Techno Classica Essen
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