With a 240-horsepower five-cylinder engine responsible for motivating 4,700 pounds of Hummer, the strongly statured H3 can come across as woefully under-powered. For 2008, the Hummer folk have put together the H3 Alpha, with a 5.3-liter V8 good for 300 horsepower and 320 pound-feet of torque. We drove it recently and weren't at all surprised to find the driving experience infinitely more satisfying. We especially appreciated how smoothly and effortlessly it pulls from a stop. It'd be even better with a newer transmission than the same four-speed automatic found in the five-cylinder models, but let's not get greedy.