2005 Infiniti Q45 vs. 2003 Opel Signum
To start off, 2005 Infiniti Q45 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 4,490 cc (8 cylinders), 2005 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2005 Infiniti Q45 (340 HP) has 133 more horse power than 2003 Opel Signum. (207 HP). In normal driving conditions, 2005 Infiniti Q45 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti Q45 weights approximately 224 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 2005 Infiniti Q45 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 Infiniti Q45. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Infiniti Q45 (453 Nm) has 153 more torque (in Nm) than 2003 Opel Signum. (300 Nm). This means 2005 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
2005 Infiniti Q45 | 2003 Opel Signum | |
Make | Infiniti | Opel |
Model | Q45 | Signum |
Year Released | 2005 | 2003 |
Body Type | Sedan | Hatchback |
Engine Position | Front | Front |
Engine Size | 4490 cc | 3173 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 340 HP | 207 HP |
Torque | 453 Nm | 300 Nm |
Engine Bore Size | 93 mm | 87.5 mm |
Engine Stroke Size | 83 mm | 88 mm |
Engine Compression Ratio | 10.5:1 | 10.0:1 |
Drive Type | Rear | Front |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Weight | 1837 kg | 1613 kg |
Vehicle Length | 5080 mm | 4640 mm |
Vehicle Width | 1850 mm | 1800 mm |
Vehicle Height | 1500 mm | 1470 mm |
Wheelbase Size | 2880 mm | 2840 mm |
Fuel Consumption Highway | 9.4 L/100km | 7.8 L/100km |
Fuel Consumption City | 13.8 L/100km | 15.7 L/100km |
Fuel Consumption Overall | 11.8 L/100km | 10.7 L/100km |
Fuel Tank Capacity | 81 L | 60 L |