Purchasing 300 E need info

I have been searching the MBworld.org for the past week now and just found this site yesterday. I'm looking at a 1991 300E that I believe as the 3.0L engine it as I don't see any 2.6L badges. How reliable are these cars? I need a very reliable car for the winter, and thought a 300E would do (german car fan) while my 944 Turbo is put up in the winter months. The dealer just said the car had a major service done which included a new waterpump and fluid change so from what they claim the car is ready to go and runs perfect. The car currently has 148k on the clock and appears to be in excellent condition. What things should I look for when I look at this car next weekend? Below are some pictures of the car that the dealer sent me. Does anyone know the color? It looks purple but is kinda growing on me. If anyone has a carfax and could run this vin WDBEA30D3MB395047 I would appreciate it.

Thanks