2003 BMW 520 vs. 1991 Porsche 928
To start off, 2003 BMW 520 is newer by 12 year(s). Which means there will be less support and parts availability for 1991 Porsche 928. In addition, the cost of maintenance, including insurance, on 1991 Porsche 928 would be higher. At 4,663 cc (8 cylinders), 1991 Porsche 928 is equipped with a bigger engine. In terms of performance, 1991 Porsche 928 (306 HP @ 5900 RPM) has 139 more horse power than 2003 BMW 520. (167 HP @ 5800 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 520 weights approximately 30 kg more than 1991 Porsche 928.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1991 Porsche 928 (408 Nm @ 4100 RPM) has 198 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
| 2003 BMW 520 | 1991 Porsche 928 | |
| Make | BMW | Porsche |
| Model | 520 | 928 |
| Year Released | 2003 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 4663 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 167 HP | 306 HP |
| Engine RPM | 5800 RPM | 5900 RPM |
| Torque | 210 Nm | 408 Nm |
| Torque RPM | 3500 RPM | 4100 RPM |
| Engine Bore Size | 80 mm | 97 mm |
| Engine Stroke Size | 72 mm | 78.9 mm |
| Engine Compression Ratio | 10.8:1 | 10.0:1 |
| Top Speed | 230 km/hour | 319 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1530 kg |
| Vehicle Length | 4850 mm | 4530 mm |
| Vehicle Width | 1850 mm | 2060 mm |
| Vehicle Height | 1470 mm | 1290 mm |
| Wheelbase Size | 3000 mm | 2510 mm |
| Fuel Tank Capacity | 70 L | 76 L |
