Unless you like the look of wheels and tires sunken far back in the wheel well you need to buy new rims before you worry about tires. For a coupe those wheels are too small and have an offset that's too high. They would look pretty good on a sedan though they still wouldn't be anywhere near flush.
Also know we have hundreds of threads on wheel fitment and a forum rule is to do some research on your own before you ask common questions like this one.

So go to the wheels/tires section of the forum, start with the stickied threads at the top of that section and start reading. This site is an incredible database for all things G and almost any question you will have can be asnwered by searching. That way you don't have to wait who knows how long for someone to answer you in a thread and you won't clutter up an already massive website.