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:

    X3 in the Market
    As you can probably guess by now, the market has caught up with and in many ways passed the X3. That said, if it weren't for BMW's initiative, this segment might not even exist today, let alone of ...

    Flat Tire Monitor FTM
    The conceptThe system does not measure the actual inflation pressure in the tires. The system detects a pressure loss in a tire by comparing the rotational speeds of the individual wheels while mov ...

    Turn signal, high beams, headlamp flasher
    Turn signal Using turn signals Press the lever beyond the resistance point. To switch off manually, press the lever to the resistance point. Unusually rapid flashing of the indicator lamp indi ...