1991 Alfa Romeo 75 vs. 2002 Opel Omega
To start off, 2002 Opel Omega is newer by 11 year(s). Which means there will be less support and parts availability for 1991 Alfa Romeo 75. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo 75 would be higher. At 2,497 cc (6 cylinders), 2002 Opel Omega is equipped with a bigger engine. In terms of performance, 2002 Opel Omega (148 HP @ 4000 RPM) has 39 more horse power than 1991 Alfa Romeo 75. (109 HP @ 6000 RPM) In normal driving conditions, 2002 Opel Omega should accelerate faster than 1991 Alfa Romeo 75. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Omega weights approximately 425 kg more than 1991 Alfa Romeo 75. 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, 2002 Opel Omega (300 Nm @ 1750 RPM) has 151 more torque (in Nm) than 1991 Alfa Romeo 75. (149 Nm @ 4000 RPM). This means 2002 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo 75.
Compare all specifications:
| 1991 Alfa Romeo 75 | 2002 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 75 | Omega |
| Year Released | 1991 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1567 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 109 HP | 148 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 149 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 1750 RPM |
| Engine Bore Size | 78 mm | 80 mm |
| Engine Stroke Size | 82 mm | 82.8 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1060 kg | 1485 kg |
| Vehicle Length | 4340 mm | 4900 mm |
| Vehicle Width | 1670 mm | 1780 mm |
| Vehicle Height | 1410 mm | 1460 mm |
| Wheelbase Size | 2520 mm | 2640 mm |
| Fuel Tank Capacity | 49 L | 75 L |
