The data indicates that all vehicles of the 'AUDI A3 SPORTBACK (2020-24) 30 5DR SPORTBACK 1.0 TFSI 110 GPF SS EU6 S LINE COMFORT SOUND PACK 6SPD' model are equipped with a 999cc engine, corresponding to a 1.0-liter capacity, and solely use petrol as their primary fuel type. This highlights a consistent and uniform engine specification and fuel choice across the sampled vehicles, which is typical for this particular model range.