1991 BMW 730 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 BMW 730. In addition, the cost of maintenance, including insurance, on 1991 BMW 730 would be higher. At 2,986 cc (6 cylinders), 1991 BMW 730 is equipped with a bigger engine. In terms of performance, 1991 BMW 730 (185 HP @ 5800 RPM) has 43 more horse power than 1999 Opel Omega. (142 HP @ 5400 RPM). In normal driving conditions, 1991 BMW 730 should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 65 kg more than 1991 BMW 730.
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, 1991 BMW 730 (260 Nm @ 4000 RPM) has 50 more torque (in Nm) than 1999 Opel Omega. (210 Nm @ 4000 RPM). This means 1991 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega.
Compare all specifications:
| 1991 BMW 730 | 1999 Opel Omega | |
| Make | BMW | Opel |
| Model | 730 | Omega |
| Year Released | 1991 | 1999 |
| Engine Position | Front | Middle |
| Engine Size | 2986 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 185 HP | 142 HP |
| Engine RPM | 5800 RPM | 5400 RPM |
| Torque | 260 Nm | 210 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 89 mm | 86 mm |
| Engine Stroke Size | 80 mm | 94.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1600 kg | 1665 kg |
| Vehicle Length | 4920 mm | 4900 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1510 mm |
| Wheelbase Size | 2840 mm | 2740 mm |
| Fuel Tank Capacity | 90 L | 75 L |
