it depends on what you want from the car and what your going to use it for as well, the pectel T series is now very old and unsupported from the manufacturer, so if life racing is your only other option use that rather then the T series.

you can gain so much more technology into your build by speccing the right electronics, the antiquated on here will tell you 'its proven and does xyz' but building a cosworth fiesta is not exactly the old RS500 touring cars technology now is it lol !