2004 Audi A8 vs. 2004 Opel Signum
To start off, both 2004 Audi A8 and 2004 Opel Signum were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,172 cc (8 cylinders), 2004 Audi A8 is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (330 HP @ 6500 RPM) has 157 more horse power than 2004 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2004 Audi A8 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 216 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2004 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 Audi A8 (450 Nm @ 3500 RPM) has 185 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 2004 Audi A8 has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A8 | 2004 Opel Signum | |
| Make | Audi | Opel |
| Model | A8 | Signum |
| Year Released | 2004 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 173 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 450 Nm | 265 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 86 mm |
| Engine Stroke Size | 93 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 220 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1776 kg | 1560 kg |
| Vehicle Length | 5060 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2840 mm |
| Fuel Consumption Overall | 11.9 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 90 L | 60 L |
