Need for Speed (2015) - Cars on Customisation Mood Board
At first, I thought this was more of an overall look at car culture to influence fictional cars, but after re-reading the article, I believe like many other fans that these cars are going to be featured.
The primary reason why I believe this now, and not before, is because this is a published image. Published content generally means it is fully intended to be featured in the game, and Ghost has been really provided this time around in hiding bread crumbs in all of their content. Same with the Hummer H1 Alpha reveal in gameplay trailer 2 of Most Wanted (2012), and the quick removal of it from official media following its licence being dropped.
So these cars will be added to car list on the Need for Speed (2015) article, but the car it is will depend on what can be dug up with these images.
Bottom-Left - Honda NSX (1990) - Speedhunters Article (About halfway down)
For the purpose of the car list, I'd go with the Acura NSX (1990) as it has already been licenced... for the first Need for Speed!
Middle-Bottom - Toyota 86 - Speedhunters Article
We already know the Subaru BRZ will appear, so it's not worth adding the Toyota 86 as this kit can fit on any of the models... because all they change is the badge.
Right-Bottom - Nissan S30 - Speedhunters Article (Around top-middle third down)
For the purpose of the car list, I'd go with the Nissan Fairlady 240ZG as it has already been licenced.
Of course, when the game is nearer release or when it has released, there amy be more specific details as to the exact models referenced in these pictures or the models these aftermarket references are being applied to. At that point, the car list will be altered and car articles will be corrected accordingly.
Sorry to those that previously added these cars to the car list, but we've been in situations where users have tried to add cars without referencing or researching.
For instance, with Rivals the IGN wiki car list was continuously being asked to be added, but no car on that list had been officially announced. Also, officially announced cars were just being added without looking into the finer details of that car.