Audi CEO Markus Duesmann confirmed Auto Bild that the naming strategy will be changed. Odd numbers will be used for ICE cars and even numbers for EVs.
Audi A4 Will Be Renamed A5 For The Next Generation: Report : r/cars
Audi A6 - Wikipedia
Audi Scoops
Does this mean the A4 is now going to be the A5, and the A6 the A7? : r/Audi
Audi A4 Will Be Renamed A5 For The Next Generation: Report : r/cars
Autocar UK - 28 October 2020, PDF, Fuel Economy In Automobiles
Audi A6 - Wikipedia
Audi A6 - Wikipedia
New Audi A4 Sedan Spied Looking Production Ready, Will Be Renamed A5 Sportback - autoevolution
Plug-in hybrids – on sale now and coming in 2024
Audi Could Merge The A5 Sportback And The A4 Sedan In A Single Model
Plug-in hybrids – on sale now and coming in 2024
New Audi A4 Sedan Spied Looking Production Ready, Will Be Renamed A5 Sportback - autoevolution