2005 BMW X5 vs. 1990 BMW 850
To start off, 2005 BMW X5 is newer by 15 year(s). Which means there will be less support and parts availability for 1990 BMW 850. In addition, the cost of maintenance, including insurance, on 1990 BMW 850 would be higher. At 4,988 cc (12 cylinders), 1990 BMW 850 is equipped with a bigger engine. In terms of performance, 2005 BMW X5 (321 HP @ 6100 RPM) has 24 more horse power than 1990 BMW 850. (297 HP @ 5200 RPM). In normal driving conditions, 2005 BMW X5 should accelerate faster than 1990 BMW 850. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 445 kg more than 1990 BMW 850. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1990 BMW 850. 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, both vehicles can yield 450 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2005 BMW X5 has automatic transmission and 1990 BMW 850 has manual transmission. 1990 BMW 850 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW X5 | 1990 BMW 850 | |
| Make | BMW | BMW |
| Model | X5 | 850 |
| Year Released | 2005 | 1990 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 4988 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 321 HP | 297 HP |
| Engine RPM | 6100 RPM | 5200 RPM |
| Torque | 450 Nm | 450 Nm |
| Torque RPM | 3700 RPM | 4100 RPM |
| Engine Bore Size | 92 mm | 84 mm |
| Engine Stroke Size | 83 mm | 75 mm |
| Engine Compression Ratio | 10.0:1 | 8.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2235 kg | 1790 kg |
| Vehicle Length | 4670 mm | 4790 mm |
| Vehicle Width | 1880 mm | 1860 mm |
| Vehicle Height | 1710 mm | 1350 mm |
| Wheelbase Size | 2890 mm | 2690 mm |
| Fuel Tank Capacity | 92 L | 52 L |
