We enjoyed driving the Sonoma 4x4. As expected, ride quality was a bit jouncy with the heavy duty suspension package--these trucks ride much better with a cord of wood in back. The suspension is at its best when traversing rough terrain, hauling a heavy load or pulling a trailer.The V6 engine provided healthy throttle response across the power band, which made everyday driving enjoyable and assisted with passing maneuvers. Sonoma's two V6 engines were upgraded last year with sequential central port fuel injection and offer an excellent combination of horsepower and torque. Our Sonoma 4x4 served up a robust 190 hp at 4400 rpm and 250 lb.-ft. of torque at 2800 rpm. The base 2.2-liter four-cylinder engine, standard on two-wheel-drive models, has a number of enhancements for '98 that improve its mid-range torque and boost power to 120 hp at 5000 rpm and 140 lb.-ft. of torque at 3600 rpm. Torque is up significantly over the 1997 engine. Our STS was equipped with an electronically controlled four-speed automatic transmission with overdrive, a $1,070 option. Sonoma's electronic transfer case called Insta-Trac is a dream to operate. Simply push a button to shift into low-range and you're ready for the toughest terrain. A high ground clearance, a locking differential, aggressive tires, gas-pressure shocks and heavy-duty multi-leaf rear springs produced positive results during our off-road excursions. The Off Road Package is designed for serious off-roaders. Four-wheel disc brakes come standard on four-wheel-drive models. We particularly enjoyed the feel of Sonoma's improved brakes. Brake pedal travel is reduced with improved pedal feel, all of which instills confidence. They offer shorter stopping distances, better high-altitude performance and wear longer.
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