1991 Ford Sierra vs. 1999 Opel Omega
To start off, 1999 Opel Omega is newer by 8 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 2,196 cc (4 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (142 HP @ 5800 RPM) has 68 more horse power than 1991 Ford Sierra. (74 HP @ 4900 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 670 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1999 Opel Omega (203 Nm @ 4000 RPM) has 80 more torque (in Nm) than 1991 Ford Sierra. (123 Nm @ 2900 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra. 1999 Opel Omega has automatic transmission and 1991 Ford Sierra has manual transmission. 1991 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Opel Omega will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Ford Sierra | 1999 Opel Omega | |
| Make | Ford | Opel |
| Model | Sierra | Omega |
| Year Released | 1991 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1597 cc | 2196 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 142 HP |
| Engine RPM | 4900 RPM | 5800 RPM |
| Torque | 123 Nm | 203 Nm |
| Torque RPM | 2900 RPM | 4000 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1015 kg | 1685 kg |
| Vehicle Length | 4430 mm | 4900 mm |
| Vehicle Width | 1700 mm | 1780 mm |
| Vehicle Height | 1370 mm | 1550 mm |
| Wheelbase Size | 2620 mm | 2640 mm |
