You’ve just got to keep it under control and like with most chronic illnesses the NHS say there is no consensus on the best treatment for the disease as the underlying cause is not year clear. Symptoms can include a distinctive bull’s eye shaped What’s Best: Well equipped as tested, a CVT with Sport mode. In regular drive mode, the transmission winds up like most CVTs, and is noisy under hard acceleration – despite sound deadening efforts that include an acoustic windshield, foam .