Drive Auto Sports uses a Dynapack DAQ52. There are two main reasons for this: It is the best. It is portable. In that order. Dynapack offers features you could only dream of with many roller dynos. While there are some really great roller dynos out there, here are 6 reasons why the Dynapack is so great: The Dynapack physically bolts to your vehicle. There is no possibility of tire slip or of a strap breaking or a vehicle potentially flying off of the dyno. The Dynapack is the safest dyno out there. Tire slip and tire deformation on a roller