How subtle changes in driving style can score a decent return. Our long-term Volkswagen Arteon's turbo four-pot petrol engine may never run better than it does right now. That thought occurred to me the other day while hoovering quietly down the M40, as I glanced down at an improving long-term test economy trip computer reading and an odometer closing in on 10,000. Any useful loosening this motor's ever likely to do should now be done, surely; but not so much has yet happened that might adversely affect overall efficiency, performance or refinement.
展开▼
