I completely agree with scorpion80. The best size for the City is 14inch rims with 185/65R14. You can also fit 195/60R14's on to this rim but it will make u're steering a bit heavier and your fuel comsumption will go up.
Since many people don't like 14inch rims since they think its too small. You could also go for 15's with 195/55R15 or 195/60R15. Remember that the car may look a little better but your ride quality will drop since you're running on heavier wheels and less rubber.
If you're getting 15inch rims go for Dunlop Direzza DZ101 or Sp9000. I would prefer Michelin Energy E3A tyres because they are made in Spain and give a very comfortable ride. But they might not look as good as the Dunlops.
Good luck with your search.