Ford and Chevrolet top the list of the best-selling brands of vehicles in Wisconsin this year, according to Autotrader.com Inc., an online vehicle listing company owned by Atlanta-based Cox Automotive Inc. The Ford F-150 model is the most popular vehicle in terms of sales volume, with 8,321 units sold across the state through August. Scroll through the gallery above to see which model vehicles make up the top 10 in Wisconsin. Interestingly, for the second month in a row, Ford Motor Co.