The straight-six M340i gets mild power and torque bumps ... 4.4 seconds with rear-wheel drive and 4.1 seconds with all-wheel drive. BMW Just like the M4, the all-wheel-drive M3 Competition ...

offering manual changes via paddles behind the steering wheel. BMW’s ‘junior’ sporting models have become increasingly bespoke over recent years, and the braking system on the M340i is a ...