Vehicles with bigger, more fuel efficient engines will benefit more from hybrid technology, this full-size pickups, vans and sport utility vehicles are the leading candidates for the gas-saving benefits of hybrid technology. The pick-up Chevrolet Silverado hybrid function GM Vortec 5300 V-8 and Hydra-Matic 4L60-E four-speed automatic, coupled with hybrid technology that offers 10 to 12 per cent improved fuel economy of GM pickup half ton.