CARMAX 50 Photos 171 Reviews 6909 Southwest Fwy YelpExperience the best car buying process in town at Carmax on Southwest Freeway.Whether you're interested in SUVs, sedans, or trucks, Carmax on Southwest Freeway has got you covered. Take a trip to Carmax on Southwest Freeway and find the car that suits your style. Finding your dream car is made easy at Carmax on Southwest Freeway.