What lurks beneath the hood of this subcompact sedan?

The only constant is change.

Badass is (sometimes) only skin deep.

Careful massaging results in a still better car.

Meeting the EPA estimate is rare. Beating it? Even more so.

BMW's plug-in hybrid makes incremental progress.

Popcorn not included.

Impress yourself instead of the neighbors.

Hyundai's hyper-miling hybrid.