The 2020 Subaru Legacy debuts at the Chicago Auto Show after only a single teaser as a preview of its new shape. The seventh generation of Subie’s midsize sedan arrives at dealers this fall in Base, Premium, Sport, Limited, Limited XT, and Touring XT trim levels. Among the biggest change for the new Legacy is that a turbocharged engine is available for the first time since 2012. The XT trims of the sedan get Subie’s 2.4-liter turbo flat-four engine, and the mill makes the same 260 horsepower and 277 pound-feet as the powerplant’s application in the Ascent. A CVT is the only gearbox choice. The company predicts that the sprint to 60 miles requires 6.1 seconds, and fuel economy should be 24 miles per gallon city and 32 mpg highway. The Legacy is also available with a 2.5-liter naturally aspirated four-cylinder boxer engine with 182 hp and 176 lb-ft. It also is only available with a CVT. Acceleration to 60 mph requires an estimated 8.4 seconds, and the Subaru predicts fuel economy of 27 mpg city and 35 mpg highway. The seventh-gen Legacy rides on the Subaru Global Platform, and it provides a big increase in body stiffness, in addition to contributing to a three-d...