I’ve got a year old 318D M Sport (actually a 2.0 litre) and it does 58mpg when I feel the need 45mpg on average and will eek out 650 miles from an £80 tank of fuel, £0 initial road tax and now £30 a year
Prius’ are the last word on hypocrisy seeing as they are built in the four corners of the globe, shipped around the globe to be assembled then back around the globe to the UK. They look shit, they never achieve the MPG diesels can and try putting four people in it and see how low your back end is……
If you’re so bothered about the eco system then do it properly and don’t buy a car and hug trees. You should also re-title your post ‘which car has best fuel economy’