Radical SR8 LM Brutal Loud Sound

I have filmed a friend s Radical RS8 LM being tested at the Monza racetrack. Actually, it s the fastest road legal car at the Nurburgring track with a lap time of 6:48. The video shows many accelerations and very high speed fly bys with also a little backfire. In the main straight the top speed they reached was 302km, h. My ride in a Radical SR3: Marchettino Facebook page: