Hey I'm a newbie so please be nice. Just picked up my 58 plate A4 S line last week. The car is stunning and still getting used to it. But noticed the tyres are odd. I have 255-35-19 on the front and 235-35-19 on the rear. What should they be? As the rest of the car is mint, I though a new set of boots will finish it off. So far LOVE the full leather the B&O sounds. the torque. Not loving the electric handbrake. needs a little more power. It's meant to be 170bhp I think but needs a little more. (Chip and maybe dpf removal looming).