The new A5 is based on the latest-generation A4, which means it shares Audi’s MLB Evo platform – a hybrid steel and aluminium structure that is light enough to allow a reduction in kerb weight despite the new model’s modestly increased proportions.
The S5’s 3.0-litre petrol V6, part of the EA838 range, develops 349bhp and 369lb ft, representing 20bhp and 44lb ft improvements over the old supercharged unit. Additionally, the new peak power output means the S5 finally eclipses the old 4.2-litre V8 – at least on paper.
There’s no return to the option of a manual gearbox, of course, so the V6 is mated to an eight-speed automatic transmission as standard.
Thanks to a freewheeling function embedded in the Tiptronic ’box, along with an integrated exhaust manifold, continuously adjusting camshafts and the manufacturer’s patented valve lift system, Audi claims significantly better fuel economy for this new S5, along with CO2 emissions of 170g/km.