This is possibly the one thing that takes the shine off this game for me, because I'm more of a sim racing purist (and I know there are some others on here too), I drive every car from cockpit view. It's authentic, immersive, and this game in particular offers probably the best visually modelled cockpit views. I've been racing cockpit view for many years so it's quite instinctive. I know I sacrifice a small amount of time against others this way but generally I can hold my own easily. When it comes to the faster players out there, it does become a bit uncompetitive though, and most of the opposition do not race in this view because the general online mentality is to gain maximum advantage over any other factor.
People I race with have said they have tried cockpit view but can't get used to it. This is probably because too many alternative views are offered. I know GT Sport isn't exactly a hardcore sim but back in the day when Geoff Crammond released his F1 games, there was ONLY cockpit view, and everyone had to use it. That may be too much to deal with for todays gamers but very least we should have an option to lock the view in a lobby like Project Cars does, and offer bigger rewards to those who use this view, to encourage more people to play the way it should be played.
I know some will say they want to be allowed to use what ever view they want etc etc but frankly it's way too easy with an external view but because most people use that, it eventually forces us all to, if you really want to compete, and that is unfortunate I think because it kind of renders the cockpit view as pointless.
It's just my personal thing at the end of the day because I feel that cockpit view isn't really catered for, for players that want to use it - against other players using it because the masses are all using bumper view or the dial view. How many real life racing drivers sit on the bonnet of their cars or on the roof to drive...of course you would get a better view, but it's bit bogus really, it just feels like an acrcade game to me in those views.
If you could lock it, or there were lobby's just for cockpit view, you would know everyone has the same deal. I know the more sim orientated players will sympathise with me on this.