Editing Radio-controlled car (section)

===Electric models===
[[File:Chevrolet Camaro SS RC Car.jpg|thumb|right|A yellow RC Camaro SS]]
Electrically powered models utilize mechanical speed controllers (MSC's)<ref>{{Cite web |title=Electronic speed controllers, ESC, Mechanical Speed Controllers, MSC, motors - Tamiya RC Classics & Moderns |url=https://www.blackholesun.fr/index.php/en/41-en/rc-tech-guides/206-electronic-speed-controllers-esc-mechanical-speed-controllers-msc-motors |access-date=2023-08-20 |website=www.blackholesun.fr}}</ref> or electronic speed controllers (ESC's)<ref>{{Cite web |last=Wells |first=Tim |title=What Is an ESC For RC Cars? |url=https://clutchrc.com/electronic-speed-control/ |access-date=2023-08-20 |website=Clutch RC |language=en}}</ref> to adjust the amount of power delivered to the electric motor. The power delivered is proportional to the amount of throttle called for by the transmitter—the more the trigger is pulled, the faster it goes. The voltage is "pulsed" using [[pulse-width modulation]] to produce varying output with smooth transitions and greater efficiency. Electronic speed controllers use [[solid state (electronics)|solid state]] components that regulate the [[duty cycle]], adjusting the power delivered to the electrical motor. In addition, most electronic speed controllers can use the electric motor as a [[magnetic]] [[brake]], offering better control of the model than is possible with a mechanical speed control.

Mechanical speed controllers use a network of [[resistor]]s and switch between them by rotating a head with an [[electrode]] around a plate that has electrical contacts. Mechanical speed controllers are prone to being slow to react because they are actuated by servos, waste energy in the form of heat from the resistors, commonly become dirty and perform intermittently, and lack a dedicated braking ability. They appear only in vintage RC models, and are now essentially obsolete.

Most electric cars up to recently used brushed motors but now many people are turning to brushless motors for their higher power output and because they require much less maintenance. They are rated either in relative turns or Kv. The Kv number tells how many RPM the motor will turn per volt. However, the ability of the system to put out power is dependent on the quality of the batteries used, wires and connectors supplying power. Due to their power, brushless motors are also used in bigger monster trucks and 1/8 nitro-powered buggies that have been converted to electric. High quality brushless systems can be much more powerful than nitro and can accomplish feats such as standing backflips when installed in a monster truck, most notably the HPI Savage Flux. Some 1/5 scale gas to electric conversions are in production but are uncommon due to high price.

A new form of electric RC racing was introduced in an August 3, 2008 YouTube video by Wes Raynor of England, he called the new hobby 'MAGracing'. Cars are primarily 1/32 scale with some 1/24 scale. They are powered by rechargeable batteries, speed is controlled by RC. A magnet linked to the steering follows one of multiple steel wires buried just below the track surface enabling more accurate steering than is attainable with free running RC cars. An RC steering override allows cars to change lanes at specific places for following the 'racing line' and to pass a slower car. Tracks can therefore be much narrower and smaller making the system suitable for 'in home' racing. Cars can be driven back onto the track after
an 'off', using reverse if necessary, so that track marshals are not required.
<ref>{{cite web |last1=Kloster |first1=Kim |title=MAGracing |url=http://www.magracingforum.com/ |website=MAGracing Forum |publisher=phpBB |access-date=26 August 2022}}</ref>