Paradigm shifts tend to be either brilliant or disasters. Chevy's made just such a gamble with its full-size pickup line with a new turbo-4 engine for its Chevrolet Silverado truck. The new engine takes over in LT and RST trims where a 4.3-liter V-6 once lived, and it makes the 2019 Silverado the first modern full-size pickup truck to offer just...
