1971 BMW 3 vs. 1991 Porsche 911
To start off, 1991 Porsche 911 is newer by 20 year(s). Which means there will be less support and parts availability for 1971 BMW 3. In addition, the cost of maintenance, including insurance, on 1971 BMW 3 would be higher. At 3,163 cc (6 cylinders), 1991 Porsche 911 is equipped with a bigger engine. In terms of performance, 1991 Porsche 911 (228 HP @ 5900 RPM) has 48 more horse power than 1971 BMW 3. (180 HP @ 6000 RPM) In normal driving conditions, 1991 Porsche 911 should accelerate faster than 1971 BMW 3. With that said, vehicle weight also plays an important factor in acceleration. 1971 BMW 3 weights approximately 205 kg more than 1991 Porsche 911.
Let's talk about torque, 1991 Porsche 911 (286 Nm @ 4800 RPM) has 31 more torque (in Nm) than 1971 BMW 3. (255 Nm @ 3700 RPM). This means 1991 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1971 BMW 3.
Compare all specifications:
| 1971 BMW 3 | 1991 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 3 | 911 |
| Year Released | 1971 | 1991 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 2986 cc | 3163 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 180 HP | 228 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 255 Nm | 286 Nm |
| Torque RPM | 3700 RPM | 4800 RPM |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1380 kg | 1175 kg |
| Vehicle Length | 4740 mm | 4300 mm |
| Vehicle Width | 1700 mm | 1660 mm |
| Vehicle Height | 1370 mm | 1260 mm |
