1987 Ford Sierra vs. 1990 Opel Omega
To start off, 1990 Opel Omega is newer by 3 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 2,594 cc (6 cylinders), 1990 Opel Omega is equipped with a bigger engine. In terms of performance, 1990 Opel Omega (149 HP @ 5600 RPM) has 45 more horse power than 1987 Ford Sierra. (104 HP @ 5200 RPM) In normal driving conditions, 1990 Opel Omega should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1990 Opel Omega weights approximately 410 kg more than 1987 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, 1990 Opel Omega (224 Nm @ 3600 RPM) has 64 more torque (in Nm) than 1987 Ford Sierra. (160 Nm @ 4000 RPM). This means 1990 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 1990 Opel Omega | |
| Make | Ford | Opel |
| Model | Sierra | Omega |
| Year Released | 1987 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2594 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 149 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 160 Nm | 224 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1055 kg | 1465 kg |
| Vehicle Length | 4500 mm | 4740 mm |
| Vehicle Width | 1680 mm | 1780 mm |
| Vehicle Height | 1400 mm | 1490 mm |
| Wheelbase Size | 2620 mm | 2740 mm |
