Complete technical specifications for the Audi A5 Sportback 2.0 TFSI CNG 170hp design — 170 hp, petrol, hatchback, 2017. Performance highlights: 0–100 km/h in 8.5 s, top speed 226 km/h (140 mph), consumption 4.1 l/100km (68.9 mpg UK · 57.4 mpg US).