The next change – straight is electric: new nomenclature at Audi

Now even digits should always stand for electrically powered vehicles, as is already the case with the existing SUV series Q4 e-tron and Q8 e-tron (although the Q8 is also available with a combustion engine), i.e. A4, A6, A8, Q4, Q6, Q8. The odd numbers (A3, A5, A7, Q3, Q5, Q7) designate the conventionally motorized series. A risk of confusion with the four-door coupés is not to be expected, because these are to be discontinued.

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