2003 Audi A8 vs. 2003 Opel Signum
To start off, both 2003 Audi A8 and 2003 Opel Signum were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,936 cc (8 cylinders), 2003 Audi A8 is equipped with a bigger engine. In terms of performance, 2003 Audi A8 (276 HP @ 3750 RPM) has 161 more horse power than 2003 Opel Signum. (115 HP @ 3000 RPM). In normal driving conditions, 2003 Audi A8 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 345 kg more than 2003 Opel Signum. 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 2003 Opel Signum. 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 370 more torque (in Nm) than 2003 Opel Signum. (280 Nm @ 1500 RPM). This means 2003 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Audi A8 | 2003 Opel Signum | |
| Make | Audi | Opel |
| Model | A8 | Signum |
| Year Released | 2003 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 2172 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 115 HP |
| Engine RPM | 3750 RPM | 3000 RPM |
| Torque | 650 Nm | 280 Nm |
| Torque RPM | 1800 RPM | 1500 RPM |
| Engine Bore Size | 81.1 mm | 84.1 mm |
| Engine Stroke Size | 95.5 mm | 98 mm |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1535 kg |
| Vehicle Length | 5060 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2840 mm |
