2005 BMW X5 vs. 1986 Ford Sierra
To start off, 2005 BMW X5 is newer by 19 year(s). Which means there will be less support and parts availability for 1986 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1986 Ford Sierra would be higher. At 2,926 cc (6 cylinders), 2005 BMW X5 is equipped with a bigger engine. In terms of performance, 2005 BMW X5 (215 HP @ 4000 RPM) has 13 more horse power than 1986 Ford Sierra. (202 HP @ 6000 RPM). In normal driving conditions, 2005 BMW X5 should accelerate faster than 1986 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW X5 weights approximately 990 kg more than 1986 Ford Sierra. 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 1986 Ford Sierra. 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 243 more torque (in Nm) than 1986 Ford Sierra. (277 Nm @ 4500 RPM). This means 2005 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra.
Compare all specifications:
| 2005 BMW X5 | 1986 Ford Sierra | |
| Make | BMW | Ford |
| Model | X5 | Sierra |
| Year Released | 2005 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 215 HP | 202 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 520 Nm | 277 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Bore Size | 84 mm | 90.8 mm |
| Engine Stroke Size | 90 mm | 77 mm |
| Engine Compression Ratio | 18.0:1 | 8.0:1 |
| Top Speed | 210 km/hour | 230 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 6.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 2170 kg | 1180 kg |
| Vehicle Length | 4670 mm | 4430 mm |
| Vehicle Width | 1880 mm | 1730 mm |
| Vehicle Height | 1720 mm | 1430 mm |
| Wheelbase Size | 2830 mm | 2610 mm |
| Fuel Tank Capacity | 93 L | 116 L |
