Just to give you an idea of some of the prices, I had my Mass Airflow sensor replaced at a cost of $534, fuel pump replaced for $400 and fuel lines replaced for $150 over the last couple of years.

Truthfully, the cost of operation over the 6 or 7 years I've had the car has not been bad. It probably averages $300-$400 per year(excluding fuel costs), but often comes in $1000+ bursts.