That's beautiful. I'm Losi focused but have a soft spot for Ultimas. When I was a kid working at hobby shop a customer had a pro and he really liked working on them but not driving so always let me drive it at track.
One day I was driving that puppy Joel Johnson style

and I noticed a puff of smoke as I rounded the bend. I ran down off the drivers stand as only a 15 year old could do, bounded across the track, ripped the body off, unplugged what was a Tekin ESC starting on fire saving the day.
Oops I digress, nice work!