A buff new Buick Enclave

Spy photos suggest the Buick Enclave will become more muscular when the brand’s biggest crossover is redesigned. The successor, with its more sharply edged exterior, will arrive in mid-2017 as a 2018 model on a new, lighter platform. General Motors’ new 3.6-liter V-6 is expected to be the base engine, combined with a nine-speed automatic transmission.