I looked up the GM system, and it was called Quadrasteer. I can't find the commercial I remember, but there are plenty of other ones for the GMC and Chevy versions. I saw something that said it was about $4500 option, and it widened the wheelbase by 5 inches.
One supposed benefit was for stuff like moving trailers in tight quarters. I remember going camping when a neighbor trying to back up a fifth wheel ran over my site marker, which tore my camping slip.
One supposed benefit was for stuff like moving trailers in tight quarters. I remember going camping when a neighbor trying to back up a fifth wheel ran over my site marker, which tore my camping slip.