The consumer demand for high fuel efficient cars is being met by General Motor with roll out of its latest fuel efficiency models, Chevrolet Silverado and GMC sierra. They are being rated at 22 MPG on the highway. According to Chevrolet spokesman, this was achieved through GM refinement processes, which include optimization of fuel save mode by shift pattern optimization, six speed transmissions, addition of variable valve timings and full exhaustive comprehensive cylinder shut off to optimize the pickup to meet the fuel efficiency goal.

According to Brian Goebel, the fuel improvement does not compromise anyway in terms of payload, horsepower and other specifications being the same as GMC and full size pickups.

Fuel efficient cars were introduced last year and have become very popular with consumers due to high rise of gas as much as $4/ gallon in United States last year.

The XFE  (Extra fuel economy) label are now very popular and in high demand by car drivers. The trucks are rated at 15 mpg in the city and 21 mpg in the highway.