All-wheel drive models have a strong, rear-wheel bias under normal conditions, but are capable of channeling as much as 95% of available torque to the front axle when things get slippery. The system is transparent, requiring no input from the driver. Rainier’s suspension is independent, double A-arm in front; electronically controlled, five link air suspension in back. While it feels its size when cornering (and braking), rider comfort approaches car levels and it is a notably quiet cabin. Buick additions like an acoustic laminate in windshield and front door glass, extra sealing in C- and D-pillars and designed in acoustic absorbers all conspire to effectively isolate passengers from outside noise.

If the idea for Rainier was to translate traditional Buick brand cues to a sport ute platform, its hit the mark. Smooth and refined, Rainier is inviting for new shoppers of mid-size, mid-luxury SUV’s, and Buick owners will feel right at home, too.