NHTSA proposal would override California's tougher emissions rules
It would also freeze fuel economy requirements after 2020.
fueleconomy
Car makers ask US officials to loosen fuel economy requirements
They want to use a credit system to keep some polluting cars on the road.
Infiniti's latest engine is a last hurrah for gas-powered cars
The QX50 has the first production turbo engine to switch between performance and good fuel economy on the fly.We have two newsletters, why not sign up for both?
GMC's latest SUV travels farther thanks to glue
The vehicle has shed 700 pounds by ditching rivets and welds.
VW reportedly knew its fuel economy figures were wrong a year ago
Volkswagen may have known its fuel efficiency claims were bunk, not just its emissions.
