No- All the Wheels Roll Good and the car seem to have good speed...Do you have a wheel that does not roll freely through it's full 360 deg. of rotation?
This sounds like a good thought. Wiggles are a problem that really that really slows the car down. There is a few people who make "Wheel Wrenches" that might help your problem. There are also a few videos to help see how the wrenches are used. Check out Redline replacement part websites.you could be running on 3 wheels.
even thow the wheels spin good. lay the car down on a flat surface and look to see if the car tilts to one side or one of the wheels does not sits flat.
we had one on our track that did that.
You can make yourself a wrench by using an old fork. Take a look at an image of one for example and bend the tines accordingly.There are also a few videos to help see how the wrenches are used. Check out Redline replacement part websites.
I don't have the model handy that is being discussed but the above quote was my first thought as well. If the wheels are within the body, that means that the racer doesnt have a wide stance. Thus,it wobbles left and right causing wiggling down the track.Typically cars with the wheels inside of the body will get the wiggles down a fast track.