DG Car Sales, great deals on quality used cars in Trowbridge, Wiltshire. Come And View Our Cars In our Indoor Showroom. If you are looking for great savings on quality used cars in Trowbridge, Wiltshire, then you have reached the right place. DG Car Sales are a specialist used car dealer based and we are proud to offer you a first class customer service and very competitive pricing, so please browse our used car stock list. Don't delay, call us today to book a test drive. In order to offer cars to suit everyone we make sure that we update our used car stocklist regularly. It is therefore always worth giving us a call, even if you don't see what you are looking for on our website.