The N43 family of engines was introduced in 2007. The N43 is a group of 1.6 & 2 L new petrol engines, with a bore×stroke of 84×90 mm, 1,995 cc displacement, and 4 valves per cylinder for the 2.0 litre version.

Petrol

200 bar direct fuel injection with piezo-injectors, continuously adjustable intake and outlet camshaft, 135 kg, 160 N·m (118 ft·lbf) in the BMW 116i

BMW 1 Series

The BMW 1 Series is an entry level sports car produced by the German automaker BMW since 2004. The 1 Series is unusual in its class as it features rear-wheel drive, 50:50 weight balance, a longitudinally-mounted engine and an advanced aluminum multilink suspension...

 (Euro 4, 1.6 litre (bore x stroke: 82mm x 75,7mm) production years 2007-2009), 185 N·m (136 ft·lbf) in the BMW 116i

BMW 1 Series

The BMW 1 Series is an entry level sports car produced by the German automaker BMW since 2004. The 1 Series is unusual in its class as it features rear-wheel drive, 50:50 weight balance, a longitudinally-mounted engine and an advanced aluminum multilink suspension...

 (Euro 5, 2.0 litre), 190 N·m (140 ft·lbf) in the BMW 118i

BMW 1 Series

The BMW 1 Series is an entry level sports car produced by the German automaker BMW since 2004. The 1 Series is unusual in its class as it features rear-wheel drive, 50:50 weight balance, a longitudinally-mounted engine and an advanced aluminum multilink suspension...

 at 6,700 rpm, 7000 rpm max, 210 N·m (155 ft·lbf) at 4,250 rpm, 12:1 compression ratio in the BMW 120i

BMW 1 Series

The BMW 1 Series is an entry level sports car produced by the German automaker BMW since 2004. The 1 Series is unusual in its class as it features rear-wheel drive, 50:50 weight balance, a longitudinally-mounted engine and an advanced aluminum multilink suspension...

. Note that this straight-4 engine achieves the same amount of power and torque as in the straight-6 M54B22 engine.