Suggestion 1. Color bars based on fuel.
On page http://www.fuelly.com/car/peugeot/308
is a barr. What is showing avarage km/l. Can this bar changed, so you can see in one eye withs car is running on gas/diesel/lpg.
Suggestion 2. Add option to filter engine types. All diesel to show L4 and H4 combined. and All gas to show gas,H4,L4