2010 Mercedes-Benz ML450 Hybrid: First Drive - KickingTires I found it interesting that it had higher MPG than the Diesel version. "Rated at 21/24 mpg city/highway, it's 29 percent better than the V-6-powered ML350 (with all-wheel drive) and 47 percent better than the ML550, which has a V-8. The hybrid is only about 5 percent more efficient than the diesel-powered ML350 BlueTEC."
