Hi, Looking for upgrading from an A5 to an S5 or RS5. What are the views on the new S5 TDI? I could either do a factory order on the new S5 or buy an Rs5 sportback in a few months. My only issue with the Sportback RS5 is the lack of matrix headlights as standards and not the option to have adaptive cruise control or head up display which I am used to when driving. Driven an RS5 sportback for a week and it was amazing. Just concerned with the additional cost of maintaining an RS model.