1999 Opel Vectra vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Opel Vectra. In addition, the cost of maintenance, including insurance, on 1999 Opel Vectra would be higher. At 3,600 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (456 HP @ 3500 RPM) has 342 more horse power than 1999 Opel Vectra. (114 HP @ 5400 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1999 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 123 kg more than 1999 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 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 2005 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 1999 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, 2005 Porsche 911 (620 Nm @ 3500 RPM) has 450 more torque (in Nm) than 1999 Opel Vectra. (170 Nm @ 3400 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Vectra.
Compare all specifications:
| 1999 Opel Vectra | 2005 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Vectra | 911 |
| Year Released | 1999 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 1796 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 114 HP | 456 HP |
| Engine RPM | 5400 RPM | 3500 RPM |
| Torque | 170 Nm | 620 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 80.5 mm | 100 mm |
| Engine Stroke Size | 88.2 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1392 kg | 1515 kg |
| Vehicle Length | 4500 mm | 4460 mm |
| Vehicle Width | 1720 mm | 1840 mm |
| Vehicle Height | 1500 mm | 1280 mm |
| Wheelbase Size | 2650 mm | 2360 mm |
