1991 Alfa Romeo SZ vs. 1990 Opel Omega
To start off, 1991 Alfa Romeo SZ is newer by 1 year(s). Which means there will be less support and parts availability for 1990 Opel Omega. In addition, the cost of maintenance, including insurance, on 1990 Opel Omega would be higher. At 2,959 cc (6 cylinders), 1991 Alfa Romeo SZ is equipped with a bigger engine. In terms of performance, 1991 Alfa Romeo SZ (208 HP @ 6200 RPM) has 59 more horse power than 1990 Opel Omega. (149 HP @ 5600 RPM). In normal driving conditions, 1991 Alfa Romeo SZ should accelerate faster than 1990 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1990 Opel Omega weights approximately 205 kg more than 1991 Alfa Romeo SZ.
Let's talk about torque, 1991 Alfa Romeo SZ (245 Nm @ 4500 RPM) has 21 more torque (in Nm) than 1990 Opel Omega. (224 Nm @ 3600 RPM). This means 1991 Alfa Romeo SZ will have an easier job in driving up hills or pulling heavy equipment than 1990 Opel Omega.
Compare all specifications:
| 1991 Alfa Romeo SZ | 1990 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | SZ | Omega |
| Year Released | 1991 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 2594 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 208 HP | 149 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 245 Nm | 224 Nm |
| Torque RPM | 4500 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1260 kg | 1465 kg |
| Vehicle Length | 4670 mm | 4740 mm |
| Vehicle Width | 1740 mm | 1780 mm |
| Vehicle Height | 1320 mm | 1490 mm |
| Wheelbase Size | 2520 mm | 2740 mm |
