Under the Hood

The 135i's turbocharged inline-six makes 300 horsepower and 300 pounds-feet of torque. It works through a six-speed manual or BMW's seven-speed dual-clutch automatic. Either car hits 60 mph in about 5 seconds, BMW says. The M Sport Package adds a sport-tuned suspension with high-performance, six-piston front and two-piston rear brakes.

If that seems like too much, consider stepping down to the 230-hp, normally aspirated 128i, which is covered separately in the Cars.com Research section.

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    Range
    After the reserve range is reached: ► A Check Control message is displayed briefly. ► The remaining range is shown on the onboard computer. ► When a dynamic driving style is ...

    Cooling function
    The passenger compartment can only be cooled with the engine running. Press the button. The air is cooled and dehumidified and – depending on the temperature setting – warmed again. The cool ...

    High-beam Assistant
    The concept When the low beams are switched on, this system automatically switches the high beams on and off or suppresses the light in the areas that blind oncoming traffic. The procedure is cont ...