1991 BMW 730 vs. 1990 Opel Senator
To start off, 1991 BMW 730 is newer by 1 year(s). Which means there will be less support and parts availability for 1990 Opel Senator. In addition, the cost of maintenance, including insurance, on 1990 Opel Senator would be higher. At 2,986 cc (6 cylinders), 1991 BMW 730 is equipped with a bigger engine. In terms of performance, 1990 Opel Senator (202 HP @ 6000 RPM) has 17 more horse power than 1991 BMW 730. (185 HP @ 5800 RPM) In normal driving conditions, 1990 Opel Senator should accelerate faster than 1991 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW 730 weights approximately 30 kg more than 1990 Opel Senator.
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, 1990 Opel Senator (275 Nm @ 3600 RPM) has 15 more torque (in Nm) than 1991 BMW 730. (260 Nm @ 4000 RPM). This means 1990 Opel Senator will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 730.
Compare all specifications:
| 1991 BMW 730 | 1990 Opel Senator | |
| Make | BMW | Opel |
| Model | 730 | Senator |
| Year Released | 1991 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 2969 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 185 HP | 202 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 260 Nm | 275 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 89 mm | 95 mm |
| Engine Stroke Size | 80 mm | 69.8 mm |
| Engine Compression Ratio | 9.0:1 | 10.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1600 kg | 1570 kg |
| Vehicle Length | 4920 mm | 4850 mm |
| Vehicle Width | 1850 mm | 1770 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2840 mm | 2740 mm |
| Fuel Tank Capacity | 90 L | 75 L |
