Yes, the Bikeinside interior bike rack is suitable for e-bikes and pedelecs. Weight plays a subordinate role because the low center of gravity of the bikes, especially, when the battery is dismantled. The e-bike or pedelec, which should be transported inside of your car has to fit inside of course.
You can easily try that without the Bikeinside interior bikerack by removing the front wheel and if necessary the seat of the e-bike. Put the e-bike upright rear-facing or forward facinginto the interior of your vehicle. If that works, you can use the Bikeinside rack for the interior with your combination of vehicle - bicycle. The Bikeinside bike rack is very low, so you can use the Bikeinside bicycle rack even if yor e-bike fits very tight.