1991 BMW 3 Series
14 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| 318i | 17 | 23 | 19 | Premium Gasoline | Rear-Wheel Drive | 1.8L 4-cyl | Manual 5-spd |
| 318is | 17 | 23 | 19 | Premium Gasoline | Rear-Wheel Drive | 1.8L 4-cyl | Manual 5-spd |
| 318is | 19 | 25 | 21 | Premium Gasoline | Rear-Wheel Drive | 1.8L 4-cyl | Manual 5-spd |
| 318is | 19 | 25 | 21 | Premium Gasoline | Rear-Wheel Drive | 1.8L 4-cyl | Manual 5-spd |
| 318is Convertible | 18 | 24 | 21 | Premium Gasoline | Rear-Wheel Drive | 1.8L 4-cyl | Manual 5-spd |
| 325i | 15 | 17 | 15 | Premium Gasoline | Rear-Wheel Drive | 2.5L 6-cyl | Automatic 4-spd |
| 325i Convertible | 15 | 22 | 18 | Regular Gasoline | Rear-Wheel Drive | 2.5L 6-cyl | Manual 5-spd |
| 325i Convertible | 16 | 21 | 18 | Regular Gasoline | Rear-Wheel Drive | 2.5L 6-cyl | Automatic 4-spd |
| 325i/325is | 16 | 20 | 18 | Regular Gasoline | Rear-Wheel Drive | 2.5L 6-cyl | Automatic 4-spd |
| 325i/325is | 16 | 22 | 18 | Regular Gasoline | Rear-Wheel Drive | 2.5L 6-cyl | Manual 5-spd |
| 325ic | 15 | 17 | 15 | Premium Gasoline | Rear-Wheel Drive | 2.5L 6-cyl | Automatic 4-spd |
| 325is | 15 | 17 | 15 | Premium Gasoline | Rear-Wheel Drive | 2.5L 6-cyl | Automatic 4-spd |
| 325ix | 15 | 22 | 18 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 2.5L 6-cyl | Manual 5-spd |
| 325ix | 17 | 20 | 18 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 2.5L 6-cyl | Automatic 4-spd |