| JACKSON FAMILY OF DEALERSHIPS Sullivan, IL | 2 | -$11,810 | 2 |
| AL PIEMONTE BUICK GMC Elmhurst, IL | 9 | -$9,067 | 9 |
| NAPLETON BUICK GMC Crystal Lake, IL | 1 | -$8,802 | 1 |
| D'ARCY BUICK-GMC Joliet, IL | 5 | -$8,138 | 5 |
| ZEIGLER BUICK GMC OF LINCOLNWOOD Lincolnwood, IL | 15 | -$7,007 | 15 |
| BILL KAY BUICK GMC Downers Grove, IL | 4 | -$6,325 | 4 |
| HELLER CHEVROLET GMC, LLC El Paso, IL | 13 | -$6,321 | 12 |
| GREENWAY GMC, INC. Morris, IL | 1 | -$6,233 | 1 |
| K. C. SUMMERS BUICK GMC Mattoon, IL | 4 | -$5,883 | 4 |
| BOB BROCKLAND BUICK GMC, INC. Columbia, IL | 6 | -$5,691 | 6 |
| NAPLETON'S SCHAUMBURG BUICK GMC Schaumburg, IL | 21 | -$5,667 | 21 |
| 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 | 12 | -$5,143 | 12 |
| ESSIG-MOTORS INC. Aledo, IL | 1 | -$5,000 | 1 |
| VERMILION CHEVROLET GMC Tilton, IL | 7 | -$4,205 | 6 |
| CASTLE BUICK-GMC, INC. Riverside, IL | 28 | -$3,956 | 25 |
| S & K BUICK-GMC, INC. Springfield, IL | 5 | -$3,828 | 5 |
| ARLINGTON HEIGHTS BUICK GMC Arlington Heights, IL | 5 | -$3,475 | 3 |
| CASTLE CHEVROLET OF MCHENRY Mchenry, IL | 7 | -$3,131 | 7 |
| HOVE BUICK GMC INC. Bradley, IL | 3 | -$2,965 | 2 |
| ED MORSE CHEVROLET GMC Kewanee, IL | 24 | -$2,821 | 23 |
| HAGGERTY BUICK GMC, INC. Villa Park, IL | 12 | -$2,481 | 10 |
| LANDMARK OF TAYLORVILLE, INC. Taylorville, IL | 8 | -$2,341 | 8 |
| UNITED GMC Jacksonville, IL | 2 | -$2,213 | 1 |
| PRINCETON AUTOMOTIVE Princeton, IL | 3 | -$1,937 | 3 |
| DEKALB SYCAMORE CHEVROLET GMC Sycamore, IL | 1 | -$1,786 | 1 |
| HAMBLOCK CHEVROLET GMC Ottawa, IL | 6 | -$1,126 | 3 |
| ARNIE BAUER BUICK GMC CADILLAC Matteson, IL | 13 | -$1,123 | 13 |
| KUNES GMC Belvidere, IL | 4 | -$956 | 3 |
| LIGHTHOUSE BUICK GMC Morton, IL | 70 | -$507 | 69 |
| DRALLE CHEVROLET BUICK GMC Watseka, IL | 3 | -$500 | 3 |
| FOX VALLEY GMC, INC. Saint Charles, IL | 5 | -$346 | 1 |
| RAY DENNISON BUICK GMC CADILLAC, INC. Pekin, IL | 26 | -$312 | 25 |
| RIZZA BUICK GMC CADILLAC, INC. Tinley Park, IL | 4 | -$33 | 4 |
| BOB BRADY BUICK GMC, INC. Forsyth, IL | 3 | $0 | 3 |
| YEMM CHEVROLET-BUICK-GMC Galesburg, IL | 7 | $0 | 7 |
| RUSS BRAUNECKER BUICK GMC Effingham, IL | 1 | $0 | 1 |
| MIKE HAGGERTY BUICK GMC, INC. Oak Lawn, IL | 10 | $0 | 10 |
| WOODY BUICK-GMC, INC. Naperville, IL | 14 | $0 | 14 |
| BOCKER AUTO GROUP Freeport, IL | 1 | $0 | 1 |
| HOSICK MOTORS INCORPORATED Vandalia, IL | 4 | $0 | 4 |
| SERRA BUICK GMC CHAMPAIGN Savoy, IL | 4 | $0 | 4 |
| BATES CHEVROLET GMC Carlinville, IL | 5 | $0 | 5 |
| MARQUARDT OF BARRINGTON Barrington, IL | 2 | $0 | 2 |
| WOODY BUICK GMC OF GURNEE Gurnee, IL | 11 | $0 | 11 |
| QUALITY BUICK GMC Alton, IL | 2 | $0 | 2 |
| SHIELDS AUTOMART OF PAXTON, INC. Paxton, IL | 2 | $0 | 2 |
| DRISCOLL MOTOR CO., INC. Pontiac, IL | 1 | $0 | 1 |
| HARVARD CHEVROLET-GMC, LLC Harvard, IL | 2 | $0 | 2 |
| STEVE SCHMITT OF LITCHFIELD INC. Litchfield, IL | 1 | $0 | 1 |
| LAURA BUICK-GMC, INC. Collinsville, IL | 165 | $0 | 165 |
| BARKER MOTOR COMPANY Bloomington, IL | 3 | +$1,727 | 2 |
| KEN NELSON AUTO PLAZA, INC. Dixon, IL | 2 | +$1,866 | 1 |