Well, whatever you choose don't rush into it

One thing I would not buy cheap on is a steering servo. Some have very poor performance and really hold back someone from doing well at their racing. If your car isnt turning quick enough into the corner, you are going to be going around the corners wider and loosing time.

Once you have the right equipment for you, my best advice is practice, practice and practice more You cna never put enough focus into being on the track and getting the car around it as quick as you can.

The less mistakes you make the quicker you are going to have a smile on your face when the car is going well, your race times get quicker and you're not replacing broken stuff.

Watch how the fast guys race, usually the line they take around the track is the quickest and easiest.