The last time Chevrolet offered a straight-six engine was in the ’08 Trailblazer. That fuel-injected 4.2L gas-burner made 273 hp and 277 lb-ft of torque, with a combined EPA fuel economy rating of 16 mpg on the 4WD model. The inline-six was impressive, winning numerous awards for its innovations. But it’s nowhere near as impressive
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