The DUI prevention mandate survives politically, but engineers still face major reliability questions ...

Supporters say passive detection can stop cars from starting when a driver is impaired. Opponents warn about false positives ...

The Environmental Protection Agency says it is ending credits to automakers who install automatic start-stop ignition systems in their vehicles.

"Is the car I just bought really mine?" That’s the $50,000 question Ford and Toyota fans are asking this year. With new ...