Road wheels and drive sprocket are keyed and are straightforward to assemble. Needed to ream the mounting holes a little to get a smooth fit. It is possible to install the road wheels wrong-side out.
Laterally, it's straight but vertically.... woopsie. Good thing I checked it before the glue was fully set. I was able to remove the rise but then it was bending to the left. Spent the next half-hour straightening and rechecking.
I glued part B15 to the upper hull first and let it dry overnight. The next day I glue the engine deck (A1) on but only on the righthand side. There is a seam between the two parts that is a little large.
Closing the gap, I mean seam between B15 and A1. If I was to build this kit again, I would install A1 first. I might wait until after Step 11 (the fitting of the hull top to the bottom) to install B15.
The kit's individual track links are keyed and have a precise fit (which is good). Followed the instructions to the letter and the upper run is a half-link too long.....
Hacked off one link at the end of the run and everything is good (enough). Note that I didn't sand off the knockout pin marks or fit the guide teeth to the upper run.