It's a Hitway bk11. One of the most popular on Amazon (well I think the bk6 is).
The display for example is an S866, which are cheap and all over ebay/amazon. Heck, I could even interface an esp32 in there if I can find some documentation for the ubuiquitous 'communication protocol no.2'...
In most countries trucks have bars between the trailer wheels, precisely because too many car drivers got an unwelcome haircut by not paying attention.