
The following table compares the fuel economies of different models of Porsche 924 cars, across model years.
The annual fuel costs (shown in the right-hand columns) are calculated based on an estimated annual mileage of 15,000 miles,
of which 55% of the miles are city driving, and 45% of the miles are highway driving.
Annual Cost 1 assumes a fuel cost of $5.00 per gallon, while Annual Cost 2 assumes a fuel cost of $6.00 per gallon.
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 1988 924 S | Automatic 3-speed | 4 | 19 | 18 | 22 | $3,825 | $4,590 |
| 1988 924 S | Manual 5-speed | 4 | 21 | 18 | 26 | $3,589 | $4,307 |
| 1987 924 S | Manual 5-speed | 4 | 21 | 18 | 26 | $3,589 | $4,307 |
| 1987 924 S | Automatic 3-speed | 4 | 19 | 18 | 22 | $3,825 | $4,590 |
Data source: Fuel Economy USA, Reference.