1991 Ford Sierra vs. 2011 BMW 125
To start off, 2011 BMW 125 is newer by 20 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 2,996 cc (6 cylinders), 2011 BMW 125 is equipped with a bigger engine. In terms of performance, 2011 BMW 125 (216 HP @ 6700 RPM) has 141 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM) In normal driving conditions, 2011 BMW 125 should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW 125 weights approximately 175 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2011 BMW 125 (270 Nm @ 2500 RPM) has 118 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2011 BMW 125 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1991 Ford Sierra | 2011 BMW 125 | |
| Make | Ford | BMW |
| Model | Sierra | 125 |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 2996 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 216 HP |
| Engine RPM | 4500 RPM | 6700 RPM |
| Torque | 152 Nm | 270 Nm |
| Torque RPM | 2200 RPM | 2500 RPM |
| Engine Bore Size | 82.5 mm | 85 mm |
| Engine Stroke Size | 82 mm | 88 mm |
| Engine Compression Ratio | 21.5:1 | 10.7:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1145 kg | 1320 kg |
| Vehicle Length | 4430 mm | 4370 mm |
| Vehicle Width | 1700 mm | 1420 mm |
| Vehicle Height | 1370 mm | 1760 mm |
| Wheelbase Size | 2620 mm | 2670 mm |
| Fuel Tank Capacity | 60 L | 53 L |
