Volkswagen emissions scandal

After revelations it cheated emissions tests, Volkswagen is vowing to win back the public's trust. But, experts say, it will take a long time. First, the automaker needs to let the crisis play out.

Many customers who bought cars touted as "clean diesel" now ponder the possibility of having a substantial fix that could cut their vehicle's gas mileage or performance.

Most of us are unaware of what goes on under the hood of our car. Some people, including safety researchers, would like to access the software. But a 1998 copyright law stands in the way.