| Oakland Auto Sales - Taunton, MA | Olathe Auto Gallery - Olathe, KS | Open Road Honda - Eddison, NJ |
| Oasis Car Finance - Houston, TX | Olathe Pre-owned Hyundai - Olathe, KS | Orchard Auto - Lapeer, MI |
| Oc Imperial Motors - Buena Park, CA | Old Car Store - Grandview, MO | Outlet Rental Car Sales - Dothan, AL |
| Ocean Imports - Huntington Beach, CA | Old Fashioned Way Auto Center - Pearland, TX | Owings Mills Motor Cars - Owings Mills, MD |
| Ohana Motors - Lihue, HI | Olsi Auto Sales - Worcester, MA | Owl Automotive Group - Longwood, FL |
| Ok Carolina Classics - Concord, NC | On Point Auto - Sanford, NC | Oxford Motors - Oxford, PA |
| Ok Motor Sales, Inc - Monroe, MI | One On One Sales - Mancelona, MI | Oxnard Auto Brokers - Oxnard, CA |
| Ol Mac Motors - Topeka, KS | Ontario Auto Brokers - Ontario, OR | |