Do video games help

[itsnotanova]

I'm not a gamer so I don't have any knowledge on what's good and what's not. I had a Xbox for ten years that got used mostly to watch dvd's. I had one road rally racing game and it didn't seem realistic enough to me. I want to start tracking my car soon and thought maybe about buying another system. That's if it's worth it? Track time can be expensive. I'm thinking a gaming system might save me time/money at the track.

[itsnotanova]

What's the difference between a sim and just a regular video game with a steering wheel controller? foot pedals and a shifter? I'd also like to know what systems you guys have. Thanks