1991 Alfa Romeo SZ 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 Alfa Romeo SZ. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo SZ would be higher. At 2,962 cc (6 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (211 HP @ 6000 RPM) has 3 more horse power than 1991 Alfa Romeo SZ. (208 HP @ 6200 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 1991 Alfa Romeo SZ. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 506 kg more than 1991 Alfa Romeo SZ. 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 (270 Nm @ 3400 RPM) has 25 more torque (in Nm) than 1991 Alfa Romeo SZ. (245 Nm @ 4500 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo SZ.
Compare all specifications:
| 1991 Alfa Romeo SZ | 1999 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | SZ | Omega |
| Year Released | 1991 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 2962 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 208 HP | 211 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 245 Nm | 270 Nm |
| Torque RPM | 4500 RPM | 3400 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 72.6 mm | 85 mm |
| Engine Compression Ratio | 10.0:1 | 10.8:1 |
| Top Speed | 233 km/hour | 235 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1260 kg | 1766 kg |
| Vehicle Length | 4670 mm | 4900 mm |
| Vehicle Width | 1740 mm | 1780 mm |
| Vehicle Height | 1320 mm | 1550 mm |
| Wheelbase Size | 2520 mm | 2610 mm |
| Fuel Tank Capacity | 50 L | 75 L |
