BMW M4 Silhouette- INSANE SOUNDS on Track!

In this video you will see TWO very loud BMW M4 Silhouette’s racing on the TT track in Assen, the Netherlands. Unlike the normal M4, the M4 Silhouette has its engine mounted in the middle of the car for perfect weight distribution. It also has a different engine, it now features the S54 straight 6 engine from the E46 M3 CSL. It has been upgraded so it now makes near to 500HP! The car also weighs next to nothing, due to lots of carbon fiber use and fiber glass, the car only weighs around 1000kg’s! What did y