Tesla's Cybertruck is going to be quite the truck. Not only is it rumored to come with FSD hardware 4.0 and the new MCU 3 that's starting to appear in Model Y cars, but Elon has now said that it will also come in a four motor variant.
Elon took to Twitter to announce that the initial production of the Cybertruck will be a four motor version. It will give Tesla the ability to have independent control of each individual wheel.
Each wheel having its own independent motor is a huge deal. The advantages of having independent control of each wheel can be compared to the advantages of a dual motor Tesla compared to a single engine AWD car.
With dual motors you gain faster response times, better efficiency and ultimately, better control of the vehicle.
In an ideal world, all vehicles would have independent control of each wheel. Up until now ICE cars weren't able to do that, but for an EV it's possible due to its small and most cost effective motors.
Track control will be improved by reducing response times. It will give Tesla a lot of flexibility that hasn't been allowed before.
By having individual motors, which were all but impossible in ICE cars, Tesla will be able to not only spin each one individually, but spin them at different rates or even in opposite directions.
All vehicles have what's called a rear differential that allows wheels that are connected to each other to spin at different speeds, something that is necessary when taking a turn. During a turn, the outside wheel will need to travel a longer distance than the inside wheel.
The differential is an ingenious idea and one that needed to be solved with the advent of cars. The video below shows how a differential works:
However, by having a motor at each wheel, Tesla is essentially getting the need to have a differential since they'll be able to spin each wheel at different speeds directly.
For anyone that has ever played with a hoverboard or an RC car that has independent control of its wheels, they know what happens when you make the left wheels move in the opposite direction of the right wheels. This won't cause the car to turn, but instead it will essentially spin in place.
That's the flexibility Tesla is gaining here. Tesla will gain a lot of control with individual motors and they may even use it to allow the car to take extremely tight turns.
Tesla removed pricing for the Cybertruck on its website earlier this year, and it's possible that Tesla is rethinking which options they'll offer in terms of motors. The rumor is that Tesla will drop the single motor and tri-motor variants and instead of a dual motor and quad motor version.
I'd also expect Tesla to offer future Model S and Model X, and the new Roadster in four motor variants as well.
Over the course of this year we have learned a lot about the new Cybertruck. We even got a look at it's massive windshield coming out of Tesla's glass center. The Cybertruck will likely be the first vehicle with Tesla's AP4 hardware and offer rear-wheel turning. Tesla has also decided to add side mirrors to the truck, although allow them to be easily removable by the owner.
Earlier this year we also had a potential first peak into the Cybertruck's user interface.
The four motor variant will likely be the top of the line Cybertruck and Tesla will start producing these vehicles first, which is currently scheduled to start in late 2022.
Elon Musk has said that he will provide an update for Tesla's roadmap during Tesla's next financial results. We expect to have an update for Cybertruck production during that time.
