I think it all goes back to this one, I forget it's name. Note the rubber matting on bare seat springs. No plaid upholstery like the Cal Look.
i.pinimg.com/736x/5a/bf/01/5abf0118bf07ef179b2637f33ac30617--hotrods-volkswagen-beetles.jpg
The look uses Ford wire wheels, and instead of adapting them to the VW hub the whole suspension is carried over. This is because the VW beam can only be extended 8" until the steering gear box impact the frunk lid. The Ford axle like can be pushed further forward, and it's not as bulky.
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Here's what an extended VW beam looks like under a Baja hood.