The trackstar guys might have been Hobbyking sponsored. No idea if the engine is good or not, maybe it is. Or maybe it's another OS with someone else's cooling head.
Racers did that all the time with servos. Sponsored by JR, Savox, or Spektrum garbage? Run a Hitec and swap the badge stickers. Then again in the Worlds radio gear thread, there's "Turkey" listed as someones radio gear. So someone was having fun with the sign in sheets again.
I wouldn't buy anything but tires and radios, just because the pro's are running them.