I' m currently driving a ' 99 Chevy Silverado and love it. Extended cab, 5.3 litre 270 h.p. vortec engine. Gets 19 mpg at interstate speeds averaging 75 mph. My last truck was a ' 93 GMC Z71 4wd, extended cab, 5.7 litre, and 17 mpg. It was another great truck.