1981 BMW 725 vs. 2004 Opel Vectra
To start off, 2004 Opel Vectra is newer by 23 year(s). Which means there will be less support and parts availability for 1981 BMW 725. In addition, the cost of maintenance, including insurance, on 1981 BMW 725 would be higher. At 2,493 cc (6 cylinders), 1981 BMW 725 is equipped with a bigger engine. In terms of performance, 1981 BMW 725 (148 HP @ 5500 RPM) has 25 more horse power than 2004 Opel Vectra. (123 HP @ 6000 RPM). In normal driving conditions, 1981 BMW 725 should accelerate faster than 2004 Opel Vectra.
Because 1981 BMW 725 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 1981 BMW 725. However, in wet, icy, snow, or gravel driving conditions, 2004 Opel Vectra, 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, 1981 BMW 725 (215 Nm @ 4000 RPM) has 50 more torque (in Nm) than 2004 Opel Vectra. (165 Nm @ 3800 RPM). This means 1981 BMW 725 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Vectra.
Compare all specifications:
| 1981 BMW 725 | 2004 Opel Vectra | |
| Make | BMW | Opel |
| Model | 725 | Vectra |
| Year Released | 1981 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2493 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 123 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 215 Nm | 165 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 80.5 mm |
| Engine Stroke Size | 71.6 mm | 88.2 mm |
| Engine Compression Ratio | 9.6:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4870 mm | 4600 mm |
| Vehicle Width | 1810 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2710 mm |
