2007 BMW X5 vs. 1981 Porsche 944
To start off, 2007 BMW X5 is newer by 26 year(s). Which means there will be less support and parts availability for 1981 Porsche 944. In addition, the cost of maintenance, including insurance, on 1981 Porsche 944 would be higher. At 2,996 cc (6 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (260 HP @ 6600 RPM) has 115 more horse power than 1981 Porsche 944. (145 HP @ 5800 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 1981 Porsche 944.
Because 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Porsche 944. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 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 BMW X5 (305 Nm @ 2750 RPM) has 110 more torque (in Nm) than 1981 Porsche 944. (195 Nm @ 3000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1981 Porsche 944.
Compare all specifications:
| 2007 BMW X5 | 1981 Porsche 944 | |
| Make | BMW | Porsche |
| Model | X5 | 944 |
| Year Released | 2007 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 2479 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 260 HP | 145 HP |
| Engine RPM | 6600 RPM | 5800 RPM |
| Torque | 305 Nm | 195 Nm |
| Torque RPM | 2750 RPM | 3000 RPM |
| Engine Bore Size | 85 mm | 100 mm |
| Engine Stroke Size | 88 mm | 78.9 mm |
| Engine Compression Ratio | 10.7:1 | 9.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4860 mm | 4300 mm |
| Vehicle Width | 1940 mm | 1740 mm |
| Vehicle Height | 1770 mm | 1280 mm |
| Wheelbase Size | 2940 mm | 2410 mm |
