He said the manufactures were considering refraining from using HP as a measurement and simply state cc's.
Which would be a sound idea, HP ratings have a lot less relevancy than most people think. Who pays attention to the HP rating of their car or motorcycle? Only a small minority, but a fair percentage of people know what the cubage of their engine is, at least in liters (nowadays) for cars.
Back to Muzak396's question. I agree with the other poster that a tracked model is best suited to your driveway, depending on snow conditions you could get away with a Honda HS724 (it is stronger than its specs lead to believe) or you may require the beefier HS928 which is a commercial grade machine. Very powerful, throws snow very high and far, always impresses neighborhood kids and often their parents as well lol (snow geyser rising above the neighborhood advertises you're clearing), but is somewhat heavy until you learn how to turn properly, then you can do it with one hand. Ariens also makes tracked units but they are new so little is known of them. They cost the same as Hondas.
Honda HS928 TCD - If you lived where I live you'd have one too
