I currently have a 2016 190 ultra sport diesel with 20k on the clock. The pcp is coming to an end in a few months time. These days I'm doing only 6k miles/year. Question I have is do I keep it, or consider upgrading to a 3.0l? Is it worth getting another diesel, or is it time for some petrol fun.? Probably will look for a car with around 20k screen price. What's the pros and cons?