For more than a decade, automatic engine start/stop systems were sold as painless climate tech, a clever way to trim fuel use by cutting the engine at every red light. Now the feature is rapidly ...

Automatic engine stop‑start was sold as a painless way to cut emissions and fuel bills, a tiny software trick that would shut the engine off at red lights and fire it back up when the driver lifted ...

Start-stop is a relatively small feature with a dense engineering stack behind it. Modern systems tie together the engine control unit, starter-alternator hardware, beefed-up 12-volt or ...