if your jut getting into competitive racing, i would go ahead and start with the
mr-03 chassis kit. this arr gives you all the bits needed to run mm, rm, narrow or wide.
the shop here has a good
bundle deal to select from a list of autoscales to go with your chassis.
or you can just pick an
autoscale that peaks your interest.
your first and foremost need will be
tires. everything from there on in will be up to you and what you want to get out of your car.