I was working on a new Thunderslot spyder car last night and noticed an issue with the motor pod. I reached out to the good folks at Slot Car Corner about it and they told me they have seen a couple of issues like this. You may want to check your car and make sure the motor pod is correct. The issue is with the moulding of the bushing holders. The one on the left side of the car was angled out and not in alignment with the other side. This caused a lot of friction and the rear wheels would not turn freely. See the images. Something worth checking out on your cars.
