2005 Audi A4 vs. 1991 Opel Omega
To start off, 2005 Audi A4 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Opel Omega. In addition, the cost of maintenance, including insurance, on 1991 Opel Omega would be higher. At 1,998 cc (4 cylinders), 1991 Opel Omega is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (130 HP @ 3300 RPM) has 20 more horse power than 1991 Opel Omega. (110 HP @ 5200 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1991 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Omega weights approximately 20 kg more than 2005 Audi A4.
Because 1991 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 1991 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2005 Audi A4, 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, 2005 Audi A4 (195 Nm @ 3300 RPM) has 33 more torque (in Nm) than 1991 Opel Omega. (162 Nm @ 4600 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Omega. 2005 Audi A4 has automatic transmission and 1991 Opel Omega has manual transmission. 1991 Opel Omega will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 1991 Opel Omega | |
| Make | Audi | Opel |
| Model | A4 | Omega |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 130 HP | 110 HP |
| Engine RPM | 3300 RPM | 5200 RPM |
| Torque | 195 Nm | 162 Nm |
| Torque RPM | 3300 RPM | 4600 RPM |
| Engine Bore Size | 82.5 mm | 95 mm |
| Engine Stroke Size | 92.8 mm | 69.8 mm |
| Engine Compression Ratio | 10.3:1 | 9.4:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1310 kg | 1330 kg |
| Vehicle Length | 4550 mm | 4740 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1490 mm |
| Wheelbase Size | 2770 mm | 2740 mm |
| Fuel Tank Capacity | 70 L | 70 L |
