This is the Lamborghini Aventador J (not Unica). It's a very, very open variation of the Aventador. The J (the appended letter is taken from the "Appendix J" FIA motorsport rules that describes the various classes of cars) uses the the 12-cylinder version Lamborghini Aventador flagship as its base. What makes it truly different is the near-total lack of regard for the comfort of the two people lucky enough to be perched on — "in" isn't really an accurate preposition here — the roofless, windshield-less car.
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