DETROIT — Smarter technologies in the 2020 GMC Acadia, including a new available turbo engine and the latest GMC infotainment system1, along with a fresh look, offer greater versatility for customers on the go. The lineup includes SLE, SLT, an all-new AT4 trim and GMC’s flagship Denali, with available seating arrangements for five, six or seven DETROIT — Smarter technologies in the 2020 GMC Acadia, including a new available turbo engine and the latest GMC infotainment system1, along with a fresh look, offer greater versatility for customers on the go. The lineup includes SLE, SLT, an all-new AT4 trim and GMC’s flagship Denali, with available seating arrangements for five, six or seven