 Nobody who is looking for a reliable diesel car/ truck should buy MB GL350, which is a constant source of frustration. It is a large SUV with good fuel economy considering its size. But there is no other positive points about this car. Negative points include the following:Frequent problems with check engine light repeatedly turning onElectronics are not at all user friendlyNo spare tire. Although you can run on a flat tire for 50 miles but what if you are driving at night on a long drive.Traction is not the best in bad weather conditions.It depreciates faster than any other car in this range, almost 10,000 each year.Interior is spacious but not comfortable.