Complete technical specifications for the Audi A4 Avant 2.0 TFSI CNG 170hp — 170 hp, petrol, wagon, 2017. Performance highlights: 0–100 km/h in 8.4 s, top speed 221 km/h (137 mph), consumption 3.8 l/100km (74.3 mpg UK · 61.9 mpg US).