In Canada, we get charged a HUGE price difference for premium gasoline. Most of the time, it's 10-12 cents per litre. That's about 40-50 cents per US gallon.
I drive the C230 lots. About 30,000 kilometers per year. I average 9.0L/100km combined driving, using about 2700 litres of fuel per year.
That $0.10 adds up to $270.00 per year in extra costs. Sounds like alot, but in the grand scheme of annual operating costs for a late-model Mercedes, it's chump change.
1998 C230 "Black Betty"