I think the stock size is: 185/65/15
Mine came with Michelin tires.
If you just want to replace the tires you could go with a 205/55/15. This would give you a little better traction will not hurt the ride quality and your car would look better.
I recommend the Nitto NT450.
Here is a link:
http://www.nittotire.com/#index%2Etire%2Ent450
Also for a good price on any tire, check out the link in my sig.