| MCGRATH BUICK GMC CADILLAC Cedar Rapids, IA | 2 | -$4,475 | 2 |
| EDWARDS CHEVROLET GMC Storm Lake, IA | 4 | -$4,438 | 4 |
| KARL GMC OF MARSHALLTOWN Marshalltown, IA | 9 | -$3,291 | 9 |
| ED MORSE CHEVROLET BUICK GMC Muscatine, IA | 5 | -$3,100 | 5 |
| SHOTTENKIRK, INC. Fort Madison, IA | 2 | -$2,819 | 2 |
| KEAST AUTO CENTER Harlan, IA | 1 | -$2,725 | 1 |
| PELLA MOTORS Pella, IA | 1 | -$2,685 | 1 |
| BOB BROWN BUICK GMC Ankeny, IA | 9 | -$2,545 | 9 |
| LE MARS GMC Le Mars, IA | 10 | -$2,502 | 10 |
| VAUGHN AUTOMOTIVE Ottumwa, IA | 5 | -$2,278 | 5 |
| EDWARDS CHEVROLET BUICK GMC Council Bluffs, IA | 14 | -$2,250 | 14 |
| NIELSEN MOTORS Humboldt, IA | 1 | -$2,170 | 1 |
| STEW HANSEN BUICK GMC Clive, IA | 11 | -$1,934 | 11 |
| GREGG YOUNG BUICK GMC, LLC Indianola, IA | 6 | -$1,727 | 5 |
| DEYARMAN AUTOMOTIVE Knoxville, IA | 3 | -$1,455 | 3 |
| ED MORSE CHEVROLET GMC NORTHEAST De Witt, IA | 8 | -$1,390 | 8 |
| GREGG YOUNG CHEVROLET GMC ATLANTIC Atlantic, IA | 3 | -$1,368 | 3 |
| FOREST CITY AUTO CENTER Forest City, IA | 1 | -$1,000 | 1 |
| DALE HOWARD, INC. Iowa Falls, IA | 1 | -$973 | 1 |
| GRINNELL MOTORS Grinnell, IA | 3 | -$825 | 2 |
| BILLION GMC Sioux City, IA | 14 | -$455 | 14 |
| BOB STEPHEN MOTORS-INC. Manchester, IA | 2 | $0 | 2 |
| STALKER CHEVROLET GMC Creston, IA | 1 | $0 | 1 |
| KEMNA AUTO OF FORT DODGE Fort Dodge, IA | 1 | $0 | 1 |
| GREEN BUICK GMC INC. Davenport, IA | 10 | $0 | 10 |
| BILLION COMMUNITY, INC. Iowa City, IA | 3 | $0 | 3 |
| REX CHEVROLET GMC, LTD Odebolt, IA | 1 | $0 | 1 |
| COMMUNITY BUICK GMC, INC. Waterloo, IA | 1 | $0 | 1 |
| BILLION CHEVROLET GMC Clinton, IA | 1 | $0 | 1 |
| KEMNA AUTO CENTER Algona, IA | 4 | +$595 | 3 |
| MIKE MOLSTEAD CHEVROLET, GMC Charles City, IA | 4 | +$902 | 2 |
| PAT CLEMONS, INC. Boone, IA | 3 | +$1,763 | 2 |
| GLENDENNING MOTOR CO. INC. Mount Ayr, IA | 1 | +$1,995 | 0 |
| RICHARDSON BUICK-CADILLAC-GMC TRUCK Dubuque, IA | 1 | +$3,640 | 0 |