Bikes & Cars...

The Kia Forte sedan is zippier than you’d expect from a car that gets 31 mpg on the highway, and it did rate a 7 out of 10 on California’s Global Warming Score (higher is better). But calling it “green” would be a stretch.

The 2.4-liter, 4-cylinder engine and 5-speed automatic transmission go a long way toward making the Kia Forte a fuel sipper rather than a gas guzzler. There’s a...