IMSA | Road America 2017 - Cadillac #10 DPi Onboard

[@davidmeyers3549]

This car is awsome at the 24hrs of Daytona. This vid could be a ringtone.

[@MrDAllen1124]

I've always wondered - what's that buzzing sound the car makes every time the driver decelerates into a corner?

[@jonrobertson2269]

Donald Allen It's the air compressor for the pneumatic shifting system. The Ford GT LM uses a similar set up

[@strikeagario997]

NASCAR engine