It's actually a non-Steam pre-race update (like, downloaded right after the counter ticked over version) vehicle mod running in whatever version that guy has. I've downloaded the Steam version, and I'm currently working on improving compatibility, as stated in the OP. The only reason I got the Steam version is cuz my non-Steam version stopped working to be honest
It would be cool if you did this same sort of thing for other vehicles like the D-Series and the Covet.
From the BeamNG Informant, Article No. 727: A 30th Anniversary Bruckell Moonhawk has won the annual Hirochi Raceway 1/4 mile drag races that lasted through Friday to Sunday evening. "The Moonhawk really brings a smile to my face with it's powerful engine" said owner Dr3w1248. Other local racers have agreed that their top priority is to beat the undefeated 30th Anniversary Bruckell Moonhawk by investing more time and money into their rides by the time of the 2016 Hirochi Raceway 1/4 mile drag races. "I understand that my fellow opponents envy me and my Moonhawk, but I have a feeling that I will not surprisingly win again next year."