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BMW 3 Series F30 340i Steptronic

2015 – 2020

6.5

Fuel Economy

5.1

0–60

326

Horsepower

BMW›3 Series›F30›340i Steptronic

The 340i Steptronic is the petrol performance flagship of the F30 sedan range, using a B58 straight-six TwinPower Turbo engine producing 326 hp and 450 Nm, with a 5.1-second 0-100 km/h time on rear-wheel drive. The B58 unit is a significant step up from the earlier N55 in refinement and sustained output, and the 340i sits directly below M Performance territory in the lineup. It was offered with M Sport package options that brought suspension and visual upgrades without full M3 hardware.