After spending some time preparing both my Ford Escort and BMW 2002 I have some information I would like to share with the group.
It helps the cars body float if you use the optional brass flat head 1.5mm body screws. RevoSlot Part RS-213b
It helps to have the front body screws tighter than the rear screws to keep the rear tires from making contact with the inside of the wheel wells on the body.
Be careful to not true the front tires too low. With the guide inside the chassis as far as it will go, the stock braid, and un-trued tires the front tires barely make contact with the track. If you true the front tires any lower they will no longer make contact with the track and might cause the front of the car to tip.
Using NSR super thin braid, removing the spring from the guide and tightening the guide up all the way, the front tires barely touch the track. If you true the front tires too much they will not make contact with the track and your car will tip from side to side on the guide.
You will have to glue the rear tires to the rims as the tires can peel away from the wheels under acceleration.
These cars use a unique 14mm wheel. The only tires that will fit on them are replacement RevoSlot tires so don’t spend any time trying to find alternatives.