2009 BMW X5 vs. 1991 Ford Sierra
To start off, 2009 BMW X5 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 2,979 cc (6 cylinders), 2009 BMW X5 is equipped with a bigger engine. In terms of performance, 2009 BMW X5 (265 HP @ 4200 RPM) has 190 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 2009 BMW X5 should accelerate faster than 1991 Ford Sierra.
Let's talk about torque, 2009 BMW X5 (576 Nm @ 1750 RPM) has 424 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2009 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 2009 BMW X5 | 1991 Ford Sierra | |
| Make | BMW | Ford |
| Model | X5 | Sierra |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1751 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 265 HP | 75 HP |
| Engine RPM | 4200 RPM | 4500 RPM |
| Torque | 576 Nm | 152 Nm |
| Torque RPM | 1750 RPM | 2200 RPM |
| Fuel Type | Diesel | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4860 mm | 4430 mm |
| Vehicle Width | 1940 mm | 1700 mm |
| Vehicle Height | 1770 mm | 1370 mm |
| Wheelbase Size | 2940 mm | 2620 mm |
| Fuel Tank Capacity | 85 L | 60 L |
