Complete technical specifications for the BMW 4-Series 420i Gran Coupé Corporate Lease Edition — 184 hp, petrol, hatchback, 2017. Performance highlights: 0–100 km/h in 7.7 s, top speed 236 km/h (147 mph), consumption 6.0 l/100km (47.1 mpg UK · 39.2 mpg US).