$14.00
The fastest and easiest (and cheapest) way to make your G3 or G+ car better is to replace the wheels and tires. This low cost kit comes with narrow rear wheels and tires to fit the G3's wider traction magnets.
This will immediately make your stock car faster and handle better (due to better grip and a lower center of gravity). You simply remove the stock front and rear axles and pop in the new set. For the front you get O-ring style front wheels and axle, and for the rear you get a set up of double flanged narrow rims and narrow slip on silicone tires - along with a BSRT Pro Crown gear for faster and smoother performance. Also works with Tomy Super G+ when you have wide traction magnets. YOU'LL BE AMAZED AT THE DIFFERENCE.