That said, light duty vehicles can be great for "insignificant" plowing, IMO. By insignificant, I mean a single driveway.Neat, but I wouldn't do any significant plowing with anything less than a 3/4 ton pickup truck with heavy duty cooling and transmission.
I bought a light duty plow for my half ton last season. I enjoyed clearing my driveway (~300ft long), while sitting in the heated cab of my truck. The plow never left my driveway. I have no intentions of ever driving down the road with the plow attached.