1981 BMW 628 vs. 2004 Porsche 911
To start off, 2004 Porsche 911 is newer by 23 year(s). Which means there will be less support and parts availability for 1981 BMW 628. In addition, the cost of maintenance, including insurance, on 1981 BMW 628 would be higher. At 3,589 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (340 HP @ 6000 RPM) has 159 more horse power than 1981 BMW 628. (181 HP @ 6000 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 1981 BMW 628. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 628 weights approximately 128 kg more than 2004 Porsche 911.
Let's talk about torque, 2004 Porsche 911 (370 Nm) has 130 more torque (in Nm) than 1981 BMW 628. (240 Nm). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 628.
Compare all specifications:
| 1981 BMW 628 | 2004 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 628 | 911 |
| Year Released | 1981 | 2004 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2788 cc | 3589 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 181 HP | 340 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 240 Nm | 370 Nm |
| Engine Bore Size | 86 mm | 96 mm |
| Engine Stroke Size | 80 mm | 83 mm |
| Engine Compression Ratio | 9.3:1 | 11.3:1 |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1470 kg | 1342 kg |
| Vehicle Length | 4760 mm | 4440 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1370 mm | 1310 mm |
| Wheelbase Size | 2640 mm | 2360 mm |
| Fuel Tank Capacity | 70 L | 64 L |
