Nothing matches a G1 on the highway.
But yes, it's far from the most comfortable car in the world.
You can get pretty darn close in Hyundai/Kia's new hybrids though, and they're not half bad to sit in, and have comparatively oodles of power. And, any PEHV will deliver excellent economy until the battery runs out. I'd be sorely tempted to get a Niro PEHV if I had to buy a new vehicle, and the Volt is on my shortlist in the $6-10k range.