So much good stuff... but is it real or really good photoshop?

I'd like to believe this is real, but I've never seen a snowmobile like that, and low profile tires, and an airbagged truck in the 60's? Plus the phone number doesn't make sense for the old style... which would be a word and 4 digitsFound on https://www.facebook.com/groups/1631935880418477/