well not much has changed, well yes it has but you had the best car 9 years ago and its still the best.
Yokomo has a bunch of newer touring cars you can get, the BD which is their latest belt drive car, they have a few shaft drive cars as well.
But first you need to gather all your electronics, radio, servo, receiver, ESC, motor, and a battery pack with charger.
Alotta options mate, you gotta do research though. Check out the modern online hobby shops and ask around what your options are for all that.
But the most informative and best place to learn is the place your gonna race. See what kinda gear the fast guys have and ask them plenty of qquestions, leave wanting more.