I have been looking for a decent specialist in Hertfordshire since I bought my CL500 in September and I was recommended LTG Motors by friend with a W221 S500. I took the car in for a full service and inspection and I was blown away by their professionalism and service, not to mention the great price! They were clearly familiar with the car and were able to talk me through any concerns I had. They had also retained any replaced parts (filters, etc.) in case I wanted to inspect them myself! Overall, I was very happy with the service and wholeheartedly recommend them.