2003 Opel Signum vs. 2013 Acura RDX
To start off, 2013 Acura RDX is newer by 10 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 2,300 cc (4 cylinders), 2013 Acura RDX is equipped with a bigger engine. In terms of performance, 2013 Acura RDX (240 HP @ 6200 RPM) has 125 more horse power than 2003 Opel Signum. (115 HP @ 3000 RPM) In normal driving conditions, 2013 Acura RDX should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2013 Acura RDX weights approximately 214 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 2013 Acura RDX is all wheel drive (AWD), it will have significant more traction and grip than 2003 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2013 Acura RDX 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, 2013 Acura RDX (340 Nm @ 5000 RPM) has 60 more torque (in Nm) than 2003 Opel Signum. (280 Nm @ 1500 RPM). This means 2013 Acura RDX will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2013 Acura RDX | |
| Make | Opel | Acura |
| Model | Signum | RDX |
| Year Released | 2003 | 2013 |
| Body Type | Hatchback | SUV |
| Engine Position | Front | Front |
| Engine Size | 2172 cc | 2300 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 115 HP | 240 HP |
| Engine RPM | 3000 RPM | 6200 RPM |
| Torque | 280 Nm | 340 Nm |
| Torque RPM | 1500 RPM | 5000 RPM |
| Engine Bore Size | 84.1 mm | 89 mm |
| Engine Stroke Size | 98 mm | 93 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1535 kg | 1749 kg |
| Vehicle Length | 4640 mm | 4660 mm |
| Vehicle Width | 1800 mm | 1872 mm |
| Vehicle Height | 1470 mm | 1678 mm |
| Wheelbase Size | 2840 mm | 2685 mm |
