Similar to thesahl, I live in the Seattle area and drive up into the Washington Cascades typically 2-3x a month over the past year. I've had zero issues on long climbs. I think the turbo is typically used more than the hybrid in those situations, but I've never had power concerns.I live in Portland, OR and drive over the Cascade Mountains to Bend frequently. I have had no issues whatsoever with the hybrid. Plenty of power for passing, and ample power to go at whatever speed, barring state troopers of course.