I have had my new 307 DTurbo (110bhp) for about six weeks now, and I'm\nconcerned that my fuel economy is not as good as it should be. I had\na 306 HDi before this which was returning about 44-45 mpg\n(6.3l/100km), but my new car is only getting about 39-40 mpg\n(7l/100km). Peugeot's figures show that the 307 should use LESS fuel\nrather than more. However, I realise that the more powerful engine in\na larger car would use more fuel, but not that much more. My driving\nstyle & type of roads (mostly urban with some rural) hasn't changed,\nso what's going on?\n\nIs anyone else with a 307 disappointed in their fuel economy?