2003 Audi A8 vs. 2002 Opel Vectra
To start off, 2003 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2002 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2002 Opel Vectra would be higher. At 3,936 cc (8 cylinders), 2003 Audi A8 is equipped with a bigger engine. In terms of performance, 2003 Audi A8 (272 HP @ 3750 RPM) has 172 more horse power than 2002 Opel Vectra. (100 HP @ 6200 RPM). In normal driving conditions, 2003 Audi A8 should accelerate faster than 2002 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 480 kg more than 2002 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2002 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2003 Audi A8 will offer significantly more control. 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, 2003 Audi A8 (650 Nm @ 1800 RPM) has 500 more torque (in Nm) than 2002 Opel Vectra. (150 Nm @ 3200 RPM). This means 2003 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Vectra. 2003 Audi A8 has automatic transmission and 2002 Opel Vectra has manual transmission. 2002 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A8 | 2002 Opel Vectra | |
| Make | Audi | Opel |
| Model | A8 | Vectra |
| Year Released | 2003 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 272 HP | 100 HP |
| Engine RPM | 3750 RPM | 6200 RPM |
| Torque | 650 Nm | 150 Nm |
| Torque RPM | 1800 RPM | 3200 RPM |
| Engine Bore Size | 81 mm | 79 mm |
| Engine Stroke Size | 95.5 mm | 81.5 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1820 kg | 1340 kg |
| Vehicle Length | 5190 mm | 4500 mm |
| Vehicle Width | 1900 mm | 1720 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 3080 mm | 2650 mm |
