Metra 44-us401 (44us401) 1974-1978 Jeep Cj-7 Side/top Mount Replacement Antenna on 2040-parts.com

Design Essay: Are smart roads just around the corner?

In order to remain relevant, the car must constantly evolve. But while almost all attention focuses on four wheels, the roads that facilitate an automobile's progress have remained relatively unaltered since Eisenhower formed the National Highway system in the 1950s. With environmental concerns getting ever higher on the agenda, there is an opportunity to think outside the (metal) box and rethink the road, making it as smart as the vehicles and devices that travel upon it.

2013 Mercedes-Benz SL63 AMG review notes

ASSOCIATE EDITOR JAKE LINGEMAN: The SL-class was my favorite Mercedes for a long, long time -- probably until the SLS AMG debuted. But there's something about this body style that doesn't quite look right anymore. The front still looks great: a little blockier, but cool.

One Lap of the Web: Mini challenges Porsche; kit cars; and brand loyalty

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. Mini wished the Porsche 911 a happy 50th anniversary.