This week, the MotorWeek team is checking out the new Buick Enclave, living up to its premium status with a flagship overhaul. Then we'll take the motoring off the pavement in the GMC Canyon AT4X AEV, a midsize pickup truck built for America's wildlands. We'll stay off the beaten path in a Kawasaki "Two Wheelin'" feature before bringing it back to the byways for an airbag recall PSA.