What makes Tamiya's dirt four-wheel drive series so special in the hearts and minds of many R/C model vehicle enthusiast? What are the difference between the different generations of the DF-01, DF-02, and the DF-03 chassis? And why will there never be a DT-04? Which radio-controlled model vehicle kit was the first on each chassis and which was the most popular? And which hop-up parts can fit multiple generations of the DF (Dirt Four-Wheel Drive) series? In this episode of the RC Deep Dive podcast we get down in the dirt, and get you these multi-generational answers.