Cant save setups says too many saves

too many saves!? cant be possibl only played for a month

There is a limt
Been discussed several times before
Have a search for the other threads
Could also be in the FAQ threads stickied at the top of the discussion forum

Is there a Tune file limit?
The limit appears to be 500 saved tuning setups (d). You can upgrade and tune cars without saving the file, up to a maximum of 600 cars in your garage.