Which on is better? I'm hearing so many mixed reviews about Diesel cars... I am planning to change from my 1.6 petrol 206cc to a Diesel car (probably Audi A3 or Astra Sporthatch CDTI). Many people are suggesting I buy another petrol, as with diesels although they are good economically, when they go wrong, THEY GO WRONG! I've never owned a Diesel before so cannot say? I do on average 40miles per day therefore I am needing something both economical and decent repair costs (the main worry for me on the Diesel cars are the dual mass fly wheel on the clutch that cost a fair amount to repair). Any advice would be appreciated.