2003 Land Rover Discovery vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Land Rover Discovery. In addition, the cost of maintenance, including insurance, on 2003 Land Rover Discovery would be higher. At 3,950 cc (8 cylinders), 2003 Land Rover Discovery is equipped with a bigger engine. In terms of performance, 2003 Land Rover Discovery (181 HP @ 4750 RPM) has 8 more horse power than 2005 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2003 Land Rover Discovery should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Land Rover Discovery weights approximately 460 kg more than 2005 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Land Rover Discovery is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2003 Land Rover Discovery 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 Land Rover Discovery (340 Nm @ 2600 RPM) has 75 more torque (in Nm) than 2005 Opel Signum. (265 Nm @ 2500 RPM). This means 2003 Land Rover Discovery will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum. 2003 Land Rover Discovery has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Land Rover Discovery will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Land Rover Discovery | 2005 Opel Signum | |
| Make | Land Rover | Opel |
| Model | Discovery | Signum |
| Year Released | 2003 | 2005 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3950 cc | 1908 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 173 HP |
| Engine RPM | 4750 RPM | 5500 RPM |
| Torque | 340 Nm | 265 Nm |
| Torque RPM | 2600 RPM | 2500 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2020 kg | 1560 kg |
| Vehicle Length | 4710 mm | 4640 mm |
| Vehicle Width | 1830 mm | 1800 mm |
| Vehicle Height | 1950 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2620 mm |
