The tyre sizes you can choose from other than the stock 17" size of 205/45-17 are, 215/45-17 or 215-40/17.
When your deciding which tyre to choose, there is 2 things you need to make sure of.
(1) That the tyre matches or exceeds the stock load rating of 84.
(2) That the tyre matches or exceeds the stock speed rating of V.
If you don't then your car wont be considered road worthy

.