2002 Audi A8 vs. 2004 Opel Vectra
To start off, 2004 Opel Vectra is newer by 2 year(s). Which means there will be less support and parts availability for 2002 Audi A8. In addition, the cost of maintenance, including insurance, on 2002 Audi A8 would be higher. At 3,936 cc (8 cylinders), 2002 Audi A8 is equipped with a bigger engine. In terms of performance, 2002 Audi A8 (271 HP @ 3750 RPM) has 148 more horse power than 2004 Opel Vectra. (123 HP @ 4000 RPM). In normal driving conditions, 2002 Audi A8 should accelerate faster than 2004 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi A8 weights approximately 435 kg more than 2004 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2002 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, 2004 Opel Vectra (280 Nm @ 1500 RPM) has 55 more torque (in Nm) than 2002 Audi A8. (225 Nm @ 1800 RPM). This means 2004 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2002 Audi A8. 2002 Audi A8 has automatic transmission and 2004 Opel Vectra has manual transmission. 2004 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2002 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2002 Audi A8 | 2004 Opel Vectra | |
| Make | Audi | Opel |
| Model | A8 | Vectra |
| Year Released | 2002 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 2169 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 123 HP |
| Engine RPM | 3750 RPM | 4000 RPM |
| Torque | 225 Nm | 280 Nm |
| Torque RPM | 1800 RPM | 1500 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 95.5 mm | 98 mm |
| Engine Compression Ratio | 18.0:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 250 km/hour | 206 km/hour |
| Acceleration 0-100mph | 7 seconds | 10.8 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1505 kg |
| Vehicle Length | 5060 mm | 4600 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2720 mm |
| Fuel Consumption Overall | 9.7 L/100km | 6.5 L/100km |
| Fuel Tank Capacity | 90 L | 61 L |
