1991 Opel Omega vs. 1975 Peugeot 604
To start off, 1991 Opel Omega is newer by 16 year(s). Which means there will be less support and parts availability for 1975 Peugeot 604. In addition, the cost of maintenance, including insurance, on 1975 Peugeot 604 would be higher. At 2,664 cc (6 cylinders), 1975 Peugeot 604 is equipped with a bigger engine. In terms of performance, 1975 Peugeot 604 (136 HP @ 5750 RPM) has 26 more horse power than 1991 Opel Omega. (110 HP @ 5200 RPM) In normal driving conditions, 1975 Peugeot 604 should accelerate faster than 1991 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1975 Peugeot 604 weights approximately 125 kg more than 1991 Opel Omega. 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, 1975 Peugeot 604 (206 Nm @ 3500 RPM) has 44 more torque (in Nm) than 1991 Opel Omega. (162 Nm @ 4600 RPM). This means 1975 Peugeot 604 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Omega.
Compare all specifications:
| 1991 Opel Omega | 1975 Peugeot 604 | |
| Make | Opel | Peugeot |
| Model | Omega | 604 |
| Year Released | 1991 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2664 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 110 HP | 136 HP |
| Engine RPM | 5200 RPM | 5750 RPM |
| Torque | 162 Nm | 206 Nm |
| Torque RPM | 4600 RPM | 3500 RPM |
| Engine Bore Size | 95 mm | 88 mm |
| Engine Stroke Size | 69.8 mm | 73 mm |
| Engine Compression Ratio | 9.4:1 | 8.7:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1330 kg | 1455 kg |
| Vehicle Length | 4740 mm | 4730 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1490 mm | 1440 mm |
| Wheelbase Size | 2740 mm | 2810 mm |
| Fuel Tank Capacity | 70 L | 70 L |
