IMSA reveals the 2008 Lamborghini Murcielago GTR, based on the Murcielago LP640. It’s powered by a 6.5L V12 engine that generates 631hp @ 8000rpm and 487 lb-ft of torque @ 4800rpm. Click here for first picture in gallery.

On the upper side of the wheel arches, imsa CFK air ducts have been integrated, resulting in a significant reduction of the drag effect caused by non-aerodynamic airflow at higher and highest velocity. The imsa side-skirts on the underside guarantee the optimum airflow to the imsa diffuser

[via Seriouswheels]

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