Bethlehem Used Cars for sale. The Kelly Auto Group has been doing business in the Lehigh Valley since 1967 and has delivered over 100,000 vehicles. We have 8 franchises and over 70 models of new cars and trucks, the most selection in the Lehigh Valley. Cars, Trucks, SUV's Crossovers, whatever you need, we've got it!…Bethlehem Used Cars for sale. The Kelly Auto Group has been doing business in the Lehigh Valley since 1967 and has delivered over 100,000 vehicles. We have 8 franchises and over 70 models of new cars and trucks, the most selection in the Lehigh Valley. Cars, Trucks, SUV's Crossovers, whatever you need, we've got it!WWWW…