why you think it is complicated?
It just have 13 parts, normal engine.......
I think this design is more simple.
many ppl think it is based on rotary(include the designer), but I think it more like the Radial engine.
It is desinged by some techni in Taiwan, so it have no offical English name, & no english website.
The designer call it Rotate Engine, But I think that planet engine is more appropriate
now, we just can changh the pit stop setting in "F12". but it can't changh very quickly.
e.g. I set to changh tire every pit stop, but I was crash after pit, I no need to fill fuel & changh ture. so, I need to press F12 & turn it from always to never, 50 % fuel to 0%. It may have not enough time to do it. so, I hope that it will ask me while pit stop.