2008 Opel Vectra vs. 1991 Porsche 928
To start off, 2008 Opel Vectra is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Porsche 928. In addition, the cost of maintenance, including insurance, on 1991 Porsche 928 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 202 more horse power than 2008 Opel Vectra. (104 HP @ 6000 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 2008 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 928 weights approximately 170 kg more than 2008 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Porsche 928 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 1991 Porsche 928. However, in wet, icy, snow, or gravel driving conditions, 2008 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, 1991 Porsche 928 (408 Nm @ 4100 RPM) has 258 more torque (in Nm) than 2008 Opel Vectra. (150 Nm @ 3900 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Vectra.
Compare all specifications:
| 2008 Opel Vectra | 1991 Porsche 928 | |
| Make | Opel | Porsche |
| Model | Vectra | 928 |
| Year Released | 2008 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1596 cc | 4663 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 104 HP | 306 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 150 Nm | 408 Nm |
| Torque RPM | 3900 RPM | 4100 RPM |
| Engine Bore Size | 79 mm | 97 mm |
| Engine Stroke Size | 81.5 mm | 78.9 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 192 km/hour | 319 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1530 kg |
| Vehicle Length | 4600 mm | 4530 mm |
| Vehicle Width | 1800 mm | 2060 mm |
| Vehicle Height | 1470 mm | 1290 mm |
| Wheelbase Size | 2710 mm | 2510 mm |
| Fuel Tank Capacity | 61 L | 76 L |
