Track Video Shows BMW i3 Motor In Action
We often forget the electric vehicles have a motor at all. They accelerate at a touch of pedal with almost little or no noise. But have you ever seen how the electric motor behaves in extreme conditions?
BMW i3 has the motor located in the back, providing a rare (most EVs are front wheel drive) rear wheel drive experience. The i3 has a 170 HP and 184 lb-ft of torque motor, that is a lot of power to propel a 3,000 pound vehicle.
This video was taken during a BMW CCA Peachtree Chapter Autocross Series race with back cover removed. For those that do not know the difference between a BEV and a REX, the empty space is designed to accommodate the range extender engine. To everyone’s surprise the motor not only moves with the drivetrain in two directions, it also moves laterally, absorbing a lot of forces and making the driving experience a lot more pleasant.
The video also confirms the stresses on the motor mount bolts are enormous and in some instances causes them to fail.
If you like to have a bit of fun with your EV, find a local BMW CCA chapter and see what they have to offer. Most chapters allow non BMW vehicles on the course and it is fun to compete against other EVs.