Rising emissions regulations are forcing many automakers to adopt forced induction across the board. While some, like Mazda and Honda, have been milking naturally aspirated engines for all their worth, even they have turned to turbochargers to do some of the heavy lifting. General Motors has more than doubled North American sales of vehicles with turbo motors — going from roughly 288,000 units in 2011 to 712,000 in 2016, 23 percent of its total volume.
GM’s powertrain lineup has changed dramatically. A decade ago, only a handful of its models came with a turbo option, while just under half of today’s fleet uses some form of forced induction. The trend is set to continue for the 2018 model year, boosting the carmaker’s share of turbocharged offerings above the 50 percent mark. (Read More…)





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