1978 Opel Senator vs. 1991 Porsche 928
To start off, 1991 Porsche 928 is newer by 13 year(s). Which means there will be less support and parts availability for 1978 Opel Senator. In addition, the cost of maintenance, including insurance, on 1978 Opel Senator would be higher. At 4,663 cc (8 cylinders), 1991 Porsche 928 is equipped with a bigger engine. In terms of performance, 1991 Porsche 928 (306 HP @ 5900 RPM) has 126 more horse power than 1978 Opel Senator. (180 HP @ 5800 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 1978 Opel Senator. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 928 weights approximately 35 kg more than 1978 Opel Senator. 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, 1991 Porsche 928 (408 Nm @ 4100 RPM) has 160 more torque (in Nm) than 1978 Opel Senator. (248 Nm @ 4200 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1978 Opel Senator. 1978 Opel Senator has automatic transmission and 1991 Porsche 928 has manual transmission. 1991 Porsche 928 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1978 Opel Senator will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1978 Opel Senator | 1991 Porsche 928 | |
| Make | Opel | Porsche |
| Model | Senator | 928 |
| Year Released | 1978 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2969 cc | 4663 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 180 HP | 306 HP |
| Engine RPM | 5800 RPM | 5900 RPM |
| Torque | 248 Nm | 408 Nm |
| Torque RPM | 4200 RPM | 4100 RPM |
| Engine Bore Size | 95.1 mm | 97 mm |
| Engine Stroke Size | 69.8 mm | 78.9 mm |
| Engine Compression Ratio | 9.4:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1495 kg | 1530 kg |
| Vehicle Length | 4850 mm | 4530 mm |
| Vehicle Width | 1730 mm | 2060 mm |
| Vehicle Height | 1390 mm | 1290 mm |
| Wheelbase Size | 2690 mm | 2510 mm |
| Fuel Tank Capacity | 44 L | 76 L |
