Rush Limbaugh recently denounced Motor Trend for picking the Chevrolet Volt as its 2011 Car of the Year. I don’t follow Limbaugh’s show, because it hurts my vision to roll my eyes that much in one sitting. Still, when I heard he was against the Volt, it really irked me. For one thing, Rush got his facts all wrong. He made a big deal about how none of the cars have sold, for example. Well, buddy, that’s because none are for sale, yet! (See what I mean about the eye rolling?) Today, however, I read Motor Trend‘s open letter to…