Agreed with Aquaracer. This car alone made me want to get back into RC racing again after a long hiatus. The car is truly inspiring.
Regarding the spur gear discussion; Since I run 17.5 blinky I have to gear super tall, and I had issues finding spurs small enough that fit properly. If anyone else is looking for small spurs for stock classes, I found that
Robinson Racing Super Machined gears worked and fit the best. With the two small holes near the center of the gear to match up with the notches on AT20, its like theses gears were made for our cars.
I'm sure there are a lot of other brands out there that work great, just wanted to throw in my favorite and possibly take some guess work out for other stock racers.