[Video] Lamborghini Diablo GTR one-make racing is a V12 symphony | GRR

There are some properly cool one-make series out there. The BMW M1 Procar Championship and Jaguar Intercontinental Challenge are sainted among enthusiasts but some do go very much under-appreciated. Today, we’re putting the spotlight on the Lamborghini GTR Supertrophy, a series for a grid full of howling V12-engined Diablo GTRs which as you’d expect, generates an almighty magnificent racket.