Doesnt cost a lot of money to maintain it (at least a piston locking b/c of poor oil blend).
Fuel efficiency is great for a 2-stroke engine, can do almost 100 km with 2.5 l).
Btw its a S 3800 (50cc).
... I know it's not a car, but since that's my own property (not that I use it so much, but its a vehicle:shrug...over 35 years old, still running well.
It require some more attention than tbo's road cars, of course they're not popular but you can cross some more often than "never" .
Btw it's sad you can't drive them on CTRA anymore.
So did NSU & Citröen, which take it down (NSU bankrupted cuz of R080).
One of it best advantage is it size compared to a piston engine with "equal" displacement, usually 1/2 the size of piston's one.
I use analogue gauges, which allow you to use a low latency (1 ms) by tweaking the cfg.txt line.
It's more accurate (there's like no lag at all on diplayed speeds).
Don't know about the outgauge latency for in-game digital meter.