Just joined up, but have Been visiting many times. I live in the UK and our fuel prices are chronic. I drive a Renault trafic van that is being slowly converted to a day van. It has a 2.5 litre 140 horse diesel with 6 speed semi auto box. I tow a caravan for holiday visits across Europe.
It has a cruise control to slide under traffic cams and keep the boys in blue away. I have seen surprised by its fuel economy even when towing and on its own has returned high 30's and just past 40 on its own and a quiet road system.
Aero mods first and then it's a Scangauge