2005 Infiniti I vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Infiniti I. In addition, the cost of maintenance, including insurance, on 2005 Infiniti I would be higher. At 3,175 cc (6 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Infiniti I (224 HP @ 5600 RPM) has 16 more horse power than 2008 Opel Signum. (208 HP @ 6200 RPM). In normal driving conditions, 2005 Infiniti I should accelerate faster than 2008 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 100 kg more than 2005 Infiniti I.
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, 2008 Opel Signum (300 Nm @ 4000 RPM) has 29 more torque (in Nm) than 2005 Infiniti I. (271 Nm @ 4800 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Infiniti I.
Compare all specifications:
| 2005 Infiniti I | 2008 Opel Signum | |
| Make | Infiniti | Opel |
| Model | I | Signum |
| Year Released | 2005 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2960 cc | 3175 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 224 HP | 208 HP |
| Engine RPM | 5600 RPM | 6200 RPM |
| Torque | 271 Nm | 300 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1510 kg | 1610 kg |
| Vehicle Length | 4930 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2840 mm |
