I'll easily get 35 mpg on a motorway drive out of my 182. At the risk of blasphemy on a Clio forum, if it's really economy you're after have you considered an older 1.9 diesel Fabia VRS? Not the best looking of cars, but still has a good pull for overtaking, should get you around 50mpg, insurance and TAX both cheaper than a Clio. My drive to work is short and on country roads that I decided I didn't need a diesel and went for the fun factor of a 182.