| JACKSON FAMILY OF DEALERSHIPS Sullivan, IL | 2 | -$11,810 | 2 |
| AL PIEMONTE BUICK GMC Elmhurst, IL | 10 | -$10,282 | 9 |
| NAPLETON BUICK GMC Crystal Lake, IL | 1 | -$8,802 | 1 |
| D'ARCY BUICK-GMC Joliet, IL | 3 | -$8,218 | 3 |
| ZEIGLER BUICK GMC OF LINCOLNWOOD Lincolnwood, IL | 17 | -$6,580 | 17 |
| BILL KAY BUICK GMC Downers Grove, IL | 4 | -$6,325 | 4 |
| GREENWAY GMC, INC. Morris, IL | 1 | -$6,233 | 1 |
| HELLER CHEVROLET GMC, LLC El Paso, IL | 15 | -$5,894 | 14 |
| K. C. SUMMERS BUICK GMC Mattoon, IL | 4 | -$5,851 | 4 |
| VERMILION CHEVROLET GMC Tilton, IL | 7 | -$5,812 | 7 |
| BOB BROCKLAND BUICK GMC, INC. Columbia, IL | 6 | -$5,691 | 6 |
| NAPLETON'S SCHAUMBURG BUICK GMC Schaumburg, IL | 22 | -$5,670 | 22 |
| ADVANTAGE BUICK GMC La Grange, IL | 16 | -$5,472 | 16 |
| MARSHALL CHEVROLET GMC, INC. Jerseyville, IL | 3 | -$5,333 | 3 |
| ED MORSE CHEVROLET GMC SOUTHWEST Red Bud, IL | 14 | -$5,152 | 13 |
| ESSIG-MOTORS INC. Aledo, IL | 1 | -$5,000 | 1 |
| CASTLE BUICK-GMC, INC. Riverside, IL | 29 | -$4,432 | 26 |
| S & K BUICK-GMC, INC. Springfield, IL | 7 | -$3,822 | 7 |
| CASTLE CHEVROLET OF MCHENRY Mchenry, IL | 7 | -$3,592 | 7 |
| ARLINGTON HEIGHTS BUICK GMC Arlington Heights, IL | 5 | -$3,475 | 3 |
| HOVE BUICK GMC INC. Bradley, IL | 3 | -$3,406 | 2 |
| ED MORSE CHEVROLET GMC Kewanee, IL | 27 | -$2,702 | 26 |
| PRINCETON AUTOMOTIVE Princeton, IL | 4 | -$2,650 | 4 |
| HAGGERTY BUICK GMC, INC. Villa Park, IL | 10 | -$2,540 | 8 |
| LANDMARK OF TAYLORVILLE, INC. Taylorville, IL | 10 | -$2,290 | 10 |
| UNITED GMC Jacksonville, IL | 2 | -$2,213 | 1 |
| FOX VALLEY GMC, INC. Saint Charles, IL | 5 | -$1,846 | 5 |
| ARNIE BAUER BUICK GMC CADILLAC Matteson, IL | 11 | -$1,525 | 11 |
| HAMBLOCK CHEVROLET GMC Ottawa, IL | 6 | -$1,126 | 3 |
| LIGHTHOUSE BUICK GMC Morton, IL | 71 | -$497 | 69 |
| RAY DENNISON BUICK GMC CADILLAC, INC. Pekin, IL | 25 | -$324 | 24 |
| DRALLE CHEVROLET BUICK GMC Watseka, IL | 6 | -$250 | 6 |
| RIZZA BUICK GMC CADILLAC, INC. Tinley Park, IL | 3 | -$44 | 3 |
| HOSICK MOTORS INCORPORATED Vandalia, IL | 4 | $0 | 4 |
| LAURA BUICK-GMC, INC. Collinsville, IL | 192 | $0 | 192 |
| STEVE SCHMITT OF LITCHFIELD INC. Litchfield, IL | 3 | $0 | 3 |
| HARVARD CHEVROLET-GMC, LLC Harvard, IL | 2 | $0 | 2 |
| QUALITY BUICK GMC Alton, IL | 2 | $0 | 2 |
| WOODY BUICK GMC OF GURNEE Gurnee, IL | 12 | $0 | 12 |
| MARQUARDT OF BARRINGTON Barrington, IL | 2 | $0 | 2 |
| BOCKER AUTO GROUP Freeport, IL | 1 | $0 | 1 |
| WOODY BUICK-GMC, INC. Naperville, IL | 13 | $0 | 13 |
| MIKE HAGGERTY BUICK GMC, INC. Oak Lawn, IL | 7 | $0 | 7 |
| RUSS BRAUNECKER BUICK GMC Effingham, IL | 1 | $0 | 1 |
| YEMM CHEVROLET-BUICK-GMC Galesburg, IL | 6 | $0 | 6 |
| BOB BRADY BUICK GMC, INC. Forsyth, IL | 3 | $0 | 3 |
| BATES CHEVROLET GMC Carlinville, IL | 4 | $0 | 4 |
| BARKER MOTOR COMPANY Bloomington, IL | 2 | $0 | 2 |
| SHIELDS AUTOMART OF PAXTON, INC. Paxton, IL | 1 | $0 | 1 |
| SERRA BUICK GMC CHAMPAIGN Savoy, IL | 4 | $0 | 4 |
| KUNES GMC Belvidere, IL | 4 | +$1,794 | 3 |
| KEN NELSON AUTO PLAZA, INC. Dixon, IL | 2 | +$3,310 | 1 |