Bandai Namco confirmed to VideoGamer.com that Project Cars has been delayed to March 20, 2015 on PS4, Xbox One and PC.
The game had previously been due to launch on November 18.
"Our goal has always been to deliver a landmark title that encompasses the wishes and desires of racing fans from all around the world; something with features and content powered by the community that provide a truly unforgettable and pioneering experience" said Ian Bell, Head of Studio at Slightly Mad Studios.
"Whilst a tough decision to make, the change in release date allows the game the greatest chance of success and visibility, and the opportunity to polish the game even further to the high standards that both ourselves and our community demand and expect. We’re eager for you all to see what we’ve been working on in just a few months."
It isn't clear whether the delay has impacted the Wii U version, which is also expected to release next year.