Who needs sleigh bells? The purring engine of the Audi S5 Avant is all you need. #AudiA5 Photography by tomklockerphoto. #Audi #VorsprungDurchTechnik #ThisIsAudi ----- Audi S5 Avant: Fuel consumption combined in l/100 km: 8.0-7.6; CO₂ emissions combined in g/km: 182-171. CO₂-class: G-F.