Am Dutch, just looked out the window at what is considered a gas station with cheap prices (not next to a highway) and gas is €1.559/l, diesel is €1.319/l.

This comes to $6.72 per US gallon for gas. More than half of this price is VAT and duty. On top of this we pay road taxes based on the weight and fuel type of your vehicle, about €50/month for a small (1000kg) gas powered car.