DJ Pauly D -- Rollin' On Really Expensive Dubs Too

Our car sources tell TMZ ... the fully-loaded ride cost the blowout baron upwards of $120,000 ... his first major purchase after wrapping up the third season of "Jersey Shore."

We're told the car is so sick it has seats that massage you while you drive ... which, when we think about it, sounds like a terrible idea.

As TMZ first reported, The Situation recently bought a ridiculously expensive Bentley.

Your move, Snooks.