2005 BMW M3 vs. 1991 Ford Sierra
To start off, 2005 BMW M3 is newer by 14 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), 2005 BMW M3 is equipped with a bigger engine. In terms of performance, 2005 BMW M3 (328 HP @ 7900 RPM) has 253 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 2005 BMW M3 should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW M3 weights approximately 427 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, 2005 BMW M3 (330 Nm @ 4900 RPM) has 178 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2005 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 2005 BMW M3 | 1991 Ford Sierra | |
| Make | BMW | Ford |
| Model | M3 | Sierra |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1751 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 328 HP | 75 HP |
| Engine RPM | 7900 RPM | 4500 RPM |
| Torque | 330 Nm | 152 Nm |
| Torque RPM | 4900 RPM | 2200 RPM |
| Engine Compression Ratio | 11.5:1 | 21.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1572 kg | 1145 kg |
| Vehicle Length | 4500 mm | 4430 mm |
| Vehicle Width | 1790 mm | 1700 mm |
| Vehicle Height | 1380 mm | 1370 mm |
| Wheelbase Size | 2730 mm | 2620 mm |
| Fuel Tank Capacity | 63 L | 60 L |
