For RC or Fuel engined cars, best to buy new kits… Brands like
Kyosho, OS, Tamiya, JR are good and famous for their kits… Can get
them from $120 to $900 for electric or fuel-engined RC car… Of
course it depends whether you are getting an entry level RC kit to
advanced kit… Chassis material also plays a part like
carbon-graphite, aluminium alloy, anodised alloy… Another important
will be the motor or engine to be mounted… For electric motor,
there are different types for different needs like sports-tuned (15
turns), raced-tuned (8 turns), and for engine like 2-speed or
4-speed flywheel or clutchwheel type…