Narrow tracks can add to the sense of speed, and it used to be good when F1 ran at the old Hockenheim, which was not only a high speed track, but was also very narrow making it seem even faster.
You dont exactly need wide tracks to race F1 cars, the modern tracks are too wide i think. Some of the older tracks are wide enough, such as Imola, look at the attached pic.
If an F1 car is roughly 200cm wide, then the track is roughly 10-11m wide! Which may sound narrow, but is a good width. Then look at the other pics, fern bay is about 11-12m wide, but apparently ...
"Sure you can drive a BF1 or FO8 around Fern Bay, but that's what I would call unrealistic because that would never happen IRL. " :pillepall
Then you move on to South City, some parts of this track are up to 30m, most parts are about 15m, and then the narrow bit is 10m.
Kind of puts it into perspective that Fern Bay isnt too narrow for F1 cars, and the mix of tracks we have at the moment are ok.