[Russell Sobie]

Helicorsa/Car Radar simulates what you very much would have in real life, which is situational awareness. In real life, even in a big helmet and surrounded by your racing seat protectors on either side, you can pick up thousands of tiny hints about what is going on around you via reflections in mirrors, reflections in glass, on dash board elements... along with audio cues you get spatially that not a lot of video games simulate all that well. You get very little of those in a video game, and if you only have a single monitor there is a giant gaping hole in your situational awareness that you really should have in order to race up close and personal with other humans in any decent capacity.

In other words, it isn't cheating. It's something every sim should have on by default the second you are in a multiplayer situation.