1998 Alfa Romeo 156 vs. 1999 Opel Omega
To start off, 1999 Opel Omega is newer by 1 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 156 would be higher. At 2,597 cc (6 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1998 Alfa Romeo 156 (187 HP @ 6300 RPM) has 7 more horse power than 1999 Opel Omega. (180 HP @ 6000 RPM). In normal driving conditions, 1998 Alfa Romeo 156 should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 413 kg more than 1998 Alfa Romeo 156.
Because 1999 Opel Omega is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1999 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 1998 Alfa Romeo 156, being front wheel drive (FWD), will offer much better control with better grip. 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 (230 Nm @ 3400 RPM) has 8 more torque (in Nm) than 1998 Alfa Romeo 156. (222 Nm @ 5000 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 156.
Compare all specifications:
| 1998 Alfa Romeo 156 | 1999 Opel Omega | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Omega |
| Year Released | 1998 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2491 cc | 2597 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 187 HP | 180 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 222 Nm | 230 Nm |
| Torque RPM | 5000 RPM | 3400 RPM |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1320 kg | 1733 kg |
| Vehicle Length | 4440 mm | 4900 mm |
| Vehicle Width | 1750 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1550 mm |
| Wheelbase Size | 2600 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 75 L |
