Don't know what it's purpose is, but it looks cool.

P4xl?

Ummmmm i just found a "purpose" for it.... How about hooking it up to a Skater 40SS and pulling it into "Havasu" in April for Desert Storm,,,, and have everyone (including truckers on I-40 saying " Wow now look at thats guys Rig/Skater.... Thats what those trucks "Purposes" are...its alllllll about the "BLING". sooooo no haters..... Lol

yes. FreightShaker Sport Chassis

Didn't they feature one on Worlds Most Expensive Rides?

Yes they did.

They had a hot a$$ chick driving it pulling a nice size boat behind her.