Mine came from my Granddad. He passed it on to my Dad and now I have had it for the last 20 years or so. It's like a family heirloom (yeah, we can be a little redneck up her too).
I doubt you'll find one new like that. As Destroyer mentioned, the cars back then had the big steel bumpers that you could lift the whole vehicle with.
The closest you'll find now are the 4X4 Offroad guys have those high lift jacks for their trucks.
Like these;
http://www.hi-lift.com/index.html