I live in belgium and i am doing 8.6 till 9.2 l on 100 km. Driving between 110 km/h and 130 km/h city drivind included. And on holiday with a trailer and 2 motorcycles on it driving 120 km/h till 135 km/h 9.5 on the highway.
Hope i could help you.
http://www.wheelsnext.com
http://www.discountedwheelwarehouse.com
http://www.bigwheels.net/?location=wheels&view_mode=model&action=&model=&make_vehicle=Dodge
Maybe you will find something here.
Regards from Belgium.