Like ts S-10 counterpart at Chevrolet, the downsize GMC pickup was introduced as a two wheel drive in 1982 and as a 4×4 in 1983.  Then called the S-15, it carried either a 119 cubic-inch four cylinder or a 172 ci V6 that put out 110 horsepower at 4800 rpm. The original V6 was eventually … Continue reading 1993 GMC Sonoma Manufacturer Promo