Realistic custom Gaithersburg track layouts I've had in my head for a minute.. Comes with two different layouts, so four tracks in all (Custom 1 Racing, Custom 1 Freestyle, Custom 2 Racing, Custom 2 Freestyle).
Custom 1 is the J-hook style racing, start on the same side of the bus, charge down towards the trailers, make a U-turn around the blue turning poles and finish over the dirt ramps.
Custom 2 is a unique twist on Chicago style racing. Trucks start on opposite sides of the bus in the middle of the track, each truck hits the steep side of the ramp, goes over the bus, then makes a left turn around the turn post over the dirt ramp. I envisioned the racing course to be one hit over the bus to start, then one hit on each dirt ramp, meaning the trucks would finish and hit the final jump in the same direction that they started over the bus.
Credits: Me, Klayton, Hot Shoe
Should work in .3 and .4. Comment below if there are issues and I will see what I can do to resolve them.