well, for racing you would really need a 75mhz band radio. with a 27mhz radio there is only 6 channels to use. on the 75 mhz there are 30. when you get to a track to race and another racer is on your channel you'll have to switch to another. so you would not really get any advantage with the radio that comes with the evo. i have a 12rss and the t-15, the 12rss seems to run better and is easier to tune. with the adjustable turn buckles, you would need a camber and a toe gauge. or you would need a set-up jig, such as a "hudy set-up station" or there are other brands as well. with the adjustable turn buckles they will have to be checked after hitting a wall, or another car. the ss does come with both fixed and adjustable turnbuckles. both cars are easy to work on since they are both basicly the same car.