1991 Ford Sierra vs. 2005 Vauxhall Omega
To start off, 2005 Vauxhall Omega 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 2,198 cc (4 cylinders), 2005 Vauxhall Omega is equipped with a bigger engine. In terms of performance, 2005 Vauxhall Omega (142 HP @ 5400 RPM) has 67 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM) In normal driving conditions, 2005 Vauxhall Omega should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Vauxhall Omega weights approximately 520 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 Vauxhall Omega (210 Nm @ 4000 RPM) has 58 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2005 Vauxhall Omega will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 1991 Ford Sierra | 2005 Vauxhall Omega | |
| Make | Ford | Vauxhall |
| Model | Sierra | Omega |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1751 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 142 HP |
| Engine RPM | 4500 RPM | 5400 RPM |
| Torque | 152 Nm | 210 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Fuel Type | Diesel | Gasoline |
| Vehicle Weight | 1145 kg | 1665 kg |
| Vehicle Length | 4430 mm | 4900 mm |
| Vehicle Width | 1700 mm | 1790 mm |
| Vehicle Height | 1370 mm | 1510 mm |
| Wheelbase Size | 2620 mm | 2740 mm |
