Cities XL Platinum

Cities XL Platinum

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How is it different than Cities XL 2012?
I own cities XL 2012. I remember it was fun for a while but had some performance problems. And took a lot of planning for traffic. From the store page I can't tell how the Platinum edition is different than 2012. New buildings? New gameplay elements?

If anyone owns the previous version could you please let me know if this is worrth buying?