TomTop offers the JJRC 1/18 4-Wheel Drive Off-Road Rock Crawler Climbing Remote-Controlled Buggy Car for $18.69 with free shipping. That's the lowest price we could find by $4. It features a 2.4GHz 2-channel remote control, three motors, rubber tires, and rechargeable battery with up to 30 minutes of run-time per charge. Two AA batteries are required for the remote (not included).
Note: The countdown timer on the product page does not reflect an actual expiration time and resets daily