1978 Opel Senator vs. 1975 Porsche 911
To start off, 1978 Opel Senator is newer by 3 year(s). Which means there will be less support and parts availability for 1975 Porsche 911. In addition, the cost of maintenance, including insurance, on 1975 Porsche 911 would be higher. At 2,994 cc (6 cylinders), 1975 Porsche 911 is equipped with a bigger engine. In terms of performance, 1975 Porsche 911 (260 HP @ 5500 RPM) has 90 more horse power than 1978 Opel Senator. (170 HP @ 5400 RPM) In normal driving conditions, 1975 Porsche 911 should accelerate faster than 1978 Opel Senator. With that said, vehicle weight also plays an important factor in acceleration. 1978 Opel Senator weights approximately 145 kg more than 1975 Porsche 911.
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 Porsche 911 (343 Nm @ 4000 RPM) has 95 more torque (in Nm) than 1978 Opel Senator. (248 Nm @ 4200 RPM). This means 1975 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1978 Opel Senator.
Compare all specifications:
| 1978 Opel Senator | 1975 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Senator | 911 |
| Year Released | 1978 | 1975 |
| Engine Position | Front | Rear |
| Engine Size | 2969 cc | 2994 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 170 HP | 260 HP |
| Engine RPM | 5400 RPM | 5500 RPM |
| Torque | 248 Nm | 343 Nm |
| Torque RPM | 4200 RPM | 4000 RPM |
| Engine Bore Size | 95.1 mm | 95.1 mm |
| Engine Stroke Size | 69.8 mm | 70.4 mm |
| Engine Compression Ratio | 6.0:1 | 6.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1340 kg | 1195 kg |
| Vehicle Length | 4820 mm | 4300 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1390 mm | 1330 mm |
| Wheelbase Size | 2740 mm | 2270 mm |
| Fuel Tank Capacity | 70 L | 79 L |
