Ive got an MRA template which had all the measurements for track width on it, coupler height, wheel spacing, etc and most of the track is up to code. The problem with the model power is its crappy coupler set up. Its much lower then the Amfleet car it couples up to and the Model Power has that horrible mounted on the truck system so it moves as the truck moves while the Amfleet cars have their couplers mounted on the carbody so they dont move as the truck moves so it restricts the movement of the truck on the diner so it derails. The odd thing is though, I have other cars with couplers mounted on the truck that behave well with carbody mounted cars, some handle it some dont (in this case the diner doesn't)