| K. C. SUMMERS BUICK GMC Mattoon, IL | 1 | -$9,865 | 1 |
| AL PIEMONTE BUICK GMC Elmhurst, IL | 1 | -$9,696 | 1 |
| CASTLE BUICK-GMC, INC. North Riverside, IL | 1 | -$8,473 | 1 |
| CASTLE CHEVROLET OF MCHENRY McHenry, IL | 4 | -$7,985 | 4 |
| CARDINAL BUICK GMC INC. Belleville, IL | 1 | -$7,553 | 1 |
| ZEIGLER BUICK GMC OF LINCOLNWOOD Lincolnwood, IL | 2 | -$7,463 | 2 |
| CASTLE BUICK-GMC, INC. Riverside, IL | 1 | -$7,004 | 1 |
| AL PIEMONTE BUICK GMC ELMHURST, IL | 1 | -$6,926 | 1 |
| TERA CHEVROLET GMC Sandwich, IL | 1 | -$6,500 | 1 |
| D'ARCY BUICK-GMC Joliet, IL | 10 | -$6,444 | 10 |
| HAMBLOCK CHEVROLET GMC OTTAWA, IL | 1 | -$6,374 | 1 |
| BOB BROCKLAND BUICK GMC, INC. Columbia, IL | 1 | -$6,195 | 1 |
| KEY AUTO MALL Moline, IL | 1 | -$6,000 | 1 |
| COFFMAN TRUCK SALES, INC. Aurora, IL | 2 | -$5,574 | 2 |
| RIZZA BUICK GMC CADILLAC, INC. Tinley Park, IL | 3 | -$5,368 | 3 |
| HOVE BUICK GMC INC. Bradley, IL | 1 | -$5,366 | 1 |
| ED MORSE CHEVROLET GMC KEWANEE, IL | 2 | -$5,094 | 2 |
| DRALLE CHEVROLET BUICK GMC Watseka, IL | 1 | -$4,493 | 1 |
| ARLINGTON HEIGHTS BUICK GMC Arlington Heights, IL | 2 | -$3,525 | 2 |
| HOVE BUICK GMC INC. Bourbonnais, IL | 1 | -$2,670 | 1 |
| STEVE SCHMITT, INC. HIGHLAND, IL | 1 | -$2,418 | 1 |
| LAURA BUICK-GMC, INC. Collinsville, IL | 104 | $0 | 103 |
| POAGE AUTO PLAZA, INC. Quincy, IL | 13 | $0 | 13 |
| LIGHTHOUSE BUICK GMC Morton, IL | 7 | $0 | 7 |
| WOODY BUICK GMC OF GURNEE Gurnee, IL | 6 | $0 | 6 |
| AUFFENBERG OF CARBONDALE Carbondale, IL | 5 | $0 | 3 |
| QUALITY BUICK GMC Alton, IL | 4 | $0 | 4 |
| SERRA BUICK GMC CHAMPAIGN Savoy, IL | 3 | $0 | 3 |
| WOODY BUICK-GMC, INC. NAPERVILLE, IL | 2 | $0 | 2 |
| MARQUARDT OF BARRINGTON Barrington, IL | 2 | $0 | 2 |
| KUNES GMC Belvidere, IL | 2 | $0 | 1 |
| KEN NELSON AUTO PLAZA, INC. Dixon, IL | 1 | $0 | 1 |
| WOODY BUICK-GMC, INC. Naperville, IL | 1 | $0 | 1 |
| JEFF PERRY BUICK GMC Peru, IL | 1 | $0 | 1 |
| ARNIE BAUER CHEVROLET GMC Wilmington, IL | 1 | $0 | 1 |
| BOB BRADY BUICK GMC, INC. Forsyth, IL | 1 | $0 | 1 |
| DRISCOLL MOTOR CO., INC. Pontiac, IL | 1 | $0 | 1 |
| MARSHALL CHEVROLET GMC, INC. Jerseyville, IL | 1 | +$5,835 | 0 |
| DEKALB SYCAMORE CHEVROLET GMC SYCAMORE, IL | 1 | +$9,299 | 0 |
| UNITED GMC JACKSONVILLE, IL | 2 | — | 0 |
| RICE MOTOR COMPANY, INC. CARMI, IL | 1 | — | 0 |
| HAGGERTY BUICK GMC, INC. VILLA PARK, IL | 1 | — | 0 |
| BOCKER AUTO GROUP Freeport, IL | 1 | — | 0 |
| DRALLE CHEVROLET BUICK GMC WATSEKA, IL | 1 | — | 0 |