Gay/lesbian vehicle choices: why?

While VeeDubs are rare in this part of the country(I think the closest dealer is 150 miles from here), the cars I see the rainbow stickers on are usually old japanese compacts with heavy rust on them. The thing I see the most in this part of the country are tiny women driving huge dually pick-ups. They aren’t lesbians, I don’t think, but rather women who tow huge horse trailers in their spare time. These monsters clog up the roads around here, and they are almost never towing anything and almost never have more than one person in it.