It's this. Fanatec Wheel Support Comes To Consoles!
http://www.projectcarsgame.com/home/fanatec-wheel-support-comes-to-consoles
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Thanks to Dzidza1978 for posting it here.
Andy Tudor, Creative Director of Project Cars tweeted:
https://twitter.com/realandytudor/status/579998596470337537
What do you think this is hinting at?
Personally I'm hoping that PS4 finally is getting Logitech and Fanatec wheel support.