1990 BMW 520 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 17 year(s). Which means there will be less support and parts availability for 1990 BMW 520. In addition, the cost of maintenance, including insurance, on 1990 BMW 520 would be higher. At 3,822 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (355 HP @ 6600 RPM) has 210 more horse power than 1990 BMW 520. (145 HP @ 5900 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 1990 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1990 BMW 520 weights approximately 67 kg more than 2007 Porsche 911.
Because 2007 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1990 BMW 520. In wet, icy, snow, or gravel driving conditions, 2007 Porsche 911 will offer significantly more control. 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, 2007 Porsche 911 (400 Nm @ 4600 RPM) has 214 more torque (in Nm) than 1990 BMW 520. (186 Nm @ 4700 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1990 BMW 520.
Compare all specifications:
| 1990 BMW 520 | 2007 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 520 | 911 |
| Year Released | 1990 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1991 cc | 3822 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 145 HP | 355 HP |
| Engine RPM | 5900 RPM | 6600 RPM |
| Torque | 186 Nm | 400 Nm |
| Torque RPM | 4700 RPM | 4600 RPM |
| Engine Bore Size | 80 mm | 100 mm |
| Engine Stroke Size | 66 mm | 76 mm |
| Engine Compression Ratio | 10.5:1 | 11.8:1 |
| Top Speed | 206 km/hour | 288 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1542 kg | 1475 kg |
| Vehicle Length | 4730 mm | 4430 mm |
| Vehicle Width | 1760 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1310 mm |
| Wheelbase Size | 2770 mm | 2360 mm |
