https://www.techradar.com/news/when-coupe-meets-suv-the-new-audi-q8

The Q8 is Audi's new flagship crossover, designed to combine the elegance of a four-door coupé with the raised driving position of a SUV. So, while it doesn't offer quite the same functionality as the more practical seven-seat Q7, the five-seat Q8 promises a bit more luxury, and more space for passengers.

The Q8 features a 3.0 TDI engine with an MHEV or mild hybrid system that sees an integrated lithium ­ion battery and belt alternator starter (BAS) feed into a 48-volt primary electrical system. This means the Q8 can coast along at between 34mph and 99mph with the engine switched off, with the BAS restarting the engine as soon as power is required.