1999 Opel Astra vs. 2004 Opel Signum
To start off, 2004 Opel Signum is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Opel Astra. In addition, the cost of maintenance, including insurance, on 1999 Opel Astra would be higher. At 3,175 cc (6 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (208 HP @ 6200 RPM) has 120 more horse power than 1999 Opel Astra. (88 HP @ 6000 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 1999 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 405 kg more than 1999 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 Signum (300 Nm @ 4000 RPM) has 175 more torque (in Nm) than 1999 Opel Astra. (125 Nm @ 4000 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Astra.
Compare all specifications:
| 1999 Opel Astra | 2004 Opel Signum | |
| Make | Opel | Opel |
| Model | Astra | Signum |
| Year Released | 1999 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1389 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 88 HP | 208 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 125 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 77.6 mm | 87.5 mm |
| Engine Stroke Size | 73.4 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1190 kg | 1595 kg |
| Vehicle Length | 4300 mm | 4640 mm |
| Vehicle Width | 1720 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2620 mm | 2740 mm |
