It depends... how many miles do you do a year and do you really need a diesel? If you rarely drive into city centres and regularly cover long motorway journeys or need the torque of a diesel to tow a trailer or caravan, for example, don't be too hasty. If you mainly use your diesel XC60 for short journeys or less than 12,000 miles a year, it might be a good idea to swap it for a petrol, hybrid or electric alternative.