The TRF414 is based on the earlier TRF414X, the first official release of the TRF414 series. The TRF414 was released in Japan only towards the end of 1999. Many improvements were incoroporated compared to the 414X and the TRF414 was lighter due to new aluminium uprights and hub-carriers. The machine was well accepted by serious drivers, and entered in major racers including the JMRCA All Japan Touring Car Championships. The team TRF also participated in various races and won 2nd place overall at the Ready Race, one of the most prestigious races in the world, in May of 2000. However, they were not satisfied with the results yet, and started to work on further improvements to the machine. The TRF414M was the next in line.