1987 BMW 750 vs. 2005 BMW X5
To start off, 2005 BMW X5 is newer by 18 year(s). Which means there will be less support and parts availability for 1987 BMW 750. In addition, the cost of maintenance, including insurance, on 1987 BMW 750 would be higher. At 4,986 cc (12 cylinders), 1987 BMW 750 is equipped with a bigger engine. In terms of performance, 1987 BMW 750 (297 HP @ 5200 RPM) has 82 more horse power than 2005 BMW X5. (215 HP @ 4000 RPM). In normal driving conditions, 1987 BMW 750 should accelerate faster than 2005 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 330 kg more than 1987 BMW 750.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1987 BMW 750. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 BMW X5 (520 Nm @ 2000 RPM) has 70 more torque (in Nm) than 1987 BMW 750. (450 Nm @ 3900 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1987 BMW 750.
Compare all specifications:
| 1987 BMW 750 | 2005 BMW X5 | |
| Make | BMW | BMW |
| Model | 750 | X5 |
| Year Released | 1987 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4986 cc | 2926 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 297 HP | 215 HP |
| Engine RPM | 5200 RPM | 4000 RPM |
| Torque | 450 Nm | 520 Nm |
| Torque RPM | 3900 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 75 mm | 90 mm |
| Engine Compression Ratio | 8.8:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1840 kg | 2170 kg |
| Vehicle Length | 4920 mm | 4670 mm |
| Vehicle Width | 1850 mm | 1880 mm |
| Vehicle Height | 1420 mm | 1720 mm |
| Wheelbase Size | 2840 mm | 2830 mm |
| Fuel Tank Capacity | 120 L | 93 L |
