kyosho evolva M3

Hi people i have a random question whats a good steerwheel radio transmitter to get as ive herd that spektrums are good and im embarrassed to say i have a Futaba 2PL 2.4G and i know everyone else has a much better radio at tracks thats why im embarrassed to show it.The only thing is i like the Dx3r but the Dx3s is £100 less whats the real diffence in radios i know the dx3s has less features but is the dx3s not sutible for track use.If anyone has any suggestions on a good radio i would apresiate it.

thanks