How much do things cost in Paris and Cardiff? Cardiff is 12% cheaper than Paris Cardiff Paris Coke/Pepsi (0.33 litre)£1.01£2.44 Pack of Marlboro cigarettes£6.50£5.41 Bottle of wine£6.00£4.77 Small bottle of water (0.33 litre)£0.90£1.61 Last updated on 31/07/2014 source