How can a lawmower that weighs almost as much as a small car, be powered adequately with under 30hp? I'm getting a Kubota ZD326 and have several clients lined up already, all close to 1 acre each. I'm just floored that this mower seems so powerful, while weighing so much. I know is has a lot to do with gearing a speed and I assume rpm, but is seems out of proportion. A subcompact car might have nearly the same weight and have more than 4 times the hp. I just doesn't seem right somehow.