Carl Sewell
Title: Chairman, Sewell Automotive Cos., Dallas
2010 vehicle sales: 27,000 new and used retail
2010 revenue: $1.2 billion
Dealerships: 12, all in Texas, with a 13th opening in November
Brands: Cadillac, Lexus, Infiniti, Audi, Buick, GMC, Mini, Subaru
Family: Daughter Jacquelin, 30, runs Cadillac and Infiniti stores; son Carl, 27, runs Lexus stores
Philosophy: Treat the customer how you would like to be treated.
Dealer Carl Sewell of Dallas celebrates his family company's centennial this year.