Highlights of the 1997 Automotive News top 100 dealer groups
Four of the top 10 were public.
New champ Republic retails four times as many new vehicles as previous champ Hendrick.
For the first time, the top 100 groups retail more than 10 percent of the U.S. new-vehicle market.
Says analyst Sheldon Sandler: 'Next year the top five will be public companies.'