The only real solution is to get one of each.
I'm going to get A8 bc the car could become a daily driver a yr or 2 after the purchase. While both were incredible test drives, I will choose A8 for the long haul. The A8 was amazing, technology is good! Oh- the wife isn't a confident manual driver- so it helps with that
(It was always stressful when she piloted my c5zo6.)