2004 BMW 645 vs. 1991 Porsche 944
To start off, 2004 BMW 645 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Porsche 944. In addition, the cost of maintenance, including insurance, on 1991 Porsche 944 would be higher. At 4,392 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (322 HP @ 7400 RPM) has 75 more horse power than 1991 Porsche 944. (247 HP @ 5800 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 1991 Porsche 944. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 315 kg more than 1991 Porsche 944. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2004 BMW 645 (447 Nm) has 110 more torque (in Nm) than 1991 Porsche 944. (337 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 944.
Compare all specifications:
| 2004 BMW 645 | 1991 Porsche 944 | |
| Make | BMW | Porsche |
| Model | 645 | 944 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 2477 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 322 HP | 247 HP |
| Engine RPM | 7400 RPM | 5800 RPM |
| Torque | 447 Nm | 337 Nm |
| Engine Bore Size | 92 mm | 100 mm |
| Engine Stroke Size | 83 mm | 78.9 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1715 kg | 1400 kg |
| Vehicle Length | 4840 mm | 4240 mm |
| Vehicle Width | 1860 mm | 1740 mm |
| Vehicle Height | 1380 mm | 1280 mm |
| Wheelbase Size | 2790 mm | 2410 mm |
| Fuel Tank Capacity | 70 L | 80 L |
