A newly optional engine, upgraded infotainment, and revised styling mark the 2020 GMC Acadia, but they don’t solve its biggest issue: cut-throat competition. We give it a rating of 6.2 out of 10, pending a safety score. (Read more about how we rate cars.) The three-row crossover SUV sandwiches a new 2.0-liter turbo-4 between its carryover...
