In recent years, hobby-grade "ready-to-run" (or "RTR") models have become readily available from major manufacturers of radio-controlled cars, attracting many hobbyists who would otherwise not have purchased a kit car. Vehicles of this type need little or no final assembly and in most cases, the bodies are shipped painted and trimmed. Safety inspection of the product to ensure correct operation is essential, as injury to operators or bystanders from disassembling vehicles is possible. A number of cars and trucks are presently available only in ready-to-run form.
The growing popularity of the RTR vehicle has prompted many manufacturers to discontinue production of kit vehicles. High-spec racing vehicles are generally still available or sold only as kits, and companies like Team Associated, Losi, HPI and Tamiya sell kit and RTR versions with the benefits of a kit version being in upgraded parts or lower costs, respectively. Hobby grade vehicles can cost much more, ranging from $90 to over $1600.