The Q4 e-tron has been Audi's electric bestseller since 2021, with over 400,000 units sold to date. However, the technology had become outdated. With the 2026 facelift, Audi is making significant upgrades, particularly in the interior, and introducing two genuine innovations. During a first test drive at Lake Tegernsee, it becomes clear where the updated Q4 excels – and which question remains unanswered.