1973 BMW 2004 vs. 1978 Opel Senator
To start off, 1978 Opel Senator is newer by 5 year(s). Which means there will be less support and parts availability for 1973 BMW 2004. In addition, the cost of maintenance, including insurance, on 1973 BMW 2004 would be higher. At 1,991 cc (4 cylinders), 1973 BMW 2004 is equipped with a bigger engine. In terms of performance, 1978 Opel Senator (115 HP @ 5600 RPM) has 18 more horse power than 1973 BMW 2004. (97 HP @ 5800 RPM) In normal driving conditions, 1978 Opel Senator should accelerate faster than 1973 BMW 2004. With that said, vehicle weight also plays an important factor in acceleration. 1978 Opel Senator weights approximately 315 kg more than 1973 BMW 2004. 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, 1978 Opel Senator (160 Nm @ 4200 RPM) has 3 more torque (in Nm) than 1973 BMW 2004. (157 Nm @ 3000 RPM). This means 1978 Opel Senator will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW 2004.
Compare all specifications:
| 1973 BMW 2004 | 1978 Opel Senator | |
| Make | BMW | Opel |
| Model | 2004 | Senator |
| Year Released | 1973 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 1977 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 97 HP | 115 HP |
| Engine RPM | 5800 RPM | 5600 RPM |
| Torque | 157 Nm | 160 Nm |
| Torque RPM | 3000 RPM | 4200 RPM |
| Engine Bore Size | 89 mm | 95 mm |
| Engine Stroke Size | 80 mm | 69.8 mm |
| Engine Compression Ratio | 8.5:1 | 9.4:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1020 kg | 1335 kg |
| Vehicle Length | 4420 mm | 4850 mm |
| Vehicle Width | 1620 mm | 1730 mm |
| Vehicle Height | 1400 mm | 1390 mm |
| Wheelbase Size | 2510 mm | 2690 mm |
