The N54 straight-six heart of the BMW 1 Series Coupe had been gifted with full bolt-ons, while the Hellcat came to the battle in stock form ...

As you'll notice in the piece of footage at the bottom of the page, the Chevrolet Camaro SS 1LE and the BMW 135i Coupe duked it out on the highway.

Still, the following video has nothing to do with fast driving on the track, as the owner of this BMW M135i put on quite a show during a car meet in the United Kingdom recently.

That same turbocharged 6-cylinder engine is at work under the hoods of 2013 BMW 135is Coupe and Convertible models. In an effort to squeeze out a bit more performance, engineers added a sport-tuned ...

Like the original 1-series tuning kit, the new 135i gets a full aerodynamics treatment, though this time around it's even bolder, to reflect the increased power underhood.

The M-tuned version of the 1 Series is coming; that’s been confirmed. But for those who don’t feel like waiting, building their own is a matter of enrolling in ...

MANHART's Tuned BMW M135i Is One Feisty Hot Hatch Packing 350 HP and 524 Nm of torque.

In et 2/10, we flash-tuned our belated Project 135i with a GIAC stage 1 software. Tested on the dyno, we gained 41whp and the car was noticeably quicker.

SENIOR EDITOR BOB GRITZINGER: This latest version of BMW's "entry" model eschews some of the $9,000 worth of options that punched the price of our previously tested 135i to $45,000. This car ...