How on earth do you get that? Surely you drive at walking pace? I have a Mk3 GTI 16v...and I get 25-28 MPG out of it... I have a 911...and I get 18 MPG average...and once, an impressive 26 MPG (but the air con was broken...and I was very low on petrol) I have a Fabia vRS and I get 40-43 MPG... My S3 was averaging 25 MPG... All driven the same way, by the same driver...that is, used and used hard. I just don't see how firstly, you get the sort of economy you do from the petrols...and secondly, how you can't fail to get much better economy from the diesel when driven in a similar manner to the rest. As for 'better drives'...if the Mk3 GTI 16v is standard...then a standard vRS is a vastly better drive! So diesels can be fun...maybe not so much an Astra.