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.

    See also:

    Panic mode
    In dangerous situations, trigger the alarm system: Press the button on the remote control for at least 3 seconds. To switch off the alarm: press any button. ...

    Safety information
    The tire characteristics and tire inflation pressure influence the following: The service life of the tires. Road safety. Driving comfort. ...

    Automatic Hold
    The concept This system assists the driver by automatically setting and releasing the brake, such as when moving in stop-and-go traffic. The vehicle is automatically held in place when it is s ...