2007 BMW X3 vs. 1986 Ford Sierra
To start off, 2007 BMW X3 is newer by 21 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 2,979 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (260 HP @ 6600 RPM) has 58 more horse power than 1986 Ford Sierra. (202 HP @ 6000 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 1986 Ford Sierra.
Because 2007 BMW X3 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, 2007 BMW X3 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 X3 (305 Nm @ 2750 RPM) has 28 more torque (in Nm) than 1986 Ford Sierra. (277 Nm @ 4500 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra. 2007 BMW X3 has automatic transmission and 1986 Ford Sierra has manual transmission. 1986 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 1986 Ford Sierra | |
| Make | BMW | Ford |
| Model | X3 | Sierra |
| Year Released | 2007 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 260 HP | 202 HP |
| Engine RPM | 6600 RPM | 6000 RPM |
| Torque | 305 Nm | 277 Nm |
| Torque RPM | 2750 RPM | 4500 RPM |
| Engine Bore Size | 85.1 mm | 90.8 mm |
| Engine Stroke Size | 87.9 mm | 77 mm |
| Engine Compression Ratio | 10.7:1 | 8.0:1 |
| Top Speed | 209 km/hour | 230 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 5 doors | 3 doors |
