There is devkits that have been out for a few years on ps but you need to be a registered developer I tried to register last year but they want to sell you the full devkit and it aint cheap!
I saw back in 2012 someone had actually edited the 3dmodels and saved the pssg files ,
I saw the mod on RD But for some reason it got taken down must have been due to copyrighted materials I presume ,
I Can not understand personally what codemasters are actually doing have not got a clue ,
Dirt showdown was a massive flop and so was grid2 that was also a joke ,
If they actually released updates for the Formula 1 series during the season , and even just after a race weekend and charged people for the updates it would be really popular ,
For example at the start of the 2014 season if they released Version 1.0 and just updated the 3D Models and drivers for the 2014 season and charged 9.99 would be a massive hit,
My personal opinion is that not releasing updates is a massive mistake as they have already got the licence so there is no issues to be had in doing so,
As long as cars and drivers was updated it would make a massive difference to everyone who plays the game,
I would rather buy a 0.9 version of F1 2014 Season for example and pay 19.99 and then would be happy to update the cars all the way through the season regardless of the cost ,
The Forza franchise on Xbox is one of the biggest selling DLC Content on racing games that there as ever been along with the Grantarismo series on PS ,
Releasing a game with only 4 weeks left of the season is a massive mistake ,