I understand that the rules in the current game are a little less comprehensive than previous versions e.g. the car in front not counting as being "next" to the car behind it.
One good thing about the game is that it's pretty amenable to house rules where the rules are unclear or not to your liking. There are extremely detailed "official" tournament rules in the Formula De files section that are a good place to look if you want a documented reference for folks who need that.
When we race, we roll for collision even if you stop right in front of another car. It's easier to explain that any adjacent space counts and thematically, it makes as plenty of sense that you might clip that car's front wing.