The U.S. Interstate Highway System spans over 46,000 miles, but its construction took far longer than anyone originally planned.

Looking for a safe, affordable used car for your teen? These 5 models stay under $6,000 and score well on IIHS safety tests.

Volvo has shattered expectations by building the world's fastest semi truck, proving that big rigs can deliver serious speed when engineered right.

Trying to give your car away for free sounds simple, but people always assume there's a catch. Here's what really happens.

A graduate's Camaro ZL1 was stolen, recovered, and stolen again within days — a nightmare story highlighting the growing car theft crisis in America.

Turbocharged cars are losing their iconic whistle sound, so some automakers are piping in artificial turbo noise through speakers. Here's why it's happening.

Some muscle cars carry legendary status, but a few are far more frustrating to own than their reputation suggests. Here's what buyers should know.

California's proposed tire regulations could limit performance tire availability and raise costs for all drivers. Here's what's at stake.

Subaru's Lafayette, Indiana plant became the first U.S. auto factory certified as a wildlife habitat in 2003 — and nature is thriving there.

Discover how diesel fuel really ignites inside an engine — and why seeing it in slow motion changes everything you thought you knew.

Fernando Alonso was secretly filmed by a new production crew in Monaco, sparking major rumours about an upcoming documentary and his F1 future.

NASA's X-59 supersonic aircraft could slash coast-to-coast flight times to 2.5 hours — without the deafening sonic boom. Here's what you need to know.