2003 Opel Signum vs. 2006 Porsche Boxster
To start off, 2006 Porsche Boxster is newer by 3 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 3,173 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Porsche Boxster (240 HP @ 6400 RPM) has 33 more horse power than 2003 Opel Signum. (207 HP @ 6200 RPM) In normal driving conditions, 2006 Porsche Boxster should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Porsche Boxster weights approximately 122 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 2006 Porsche Boxster 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 2006 Porsche Boxster. 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, 2003 Opel Signum (300 Nm @ 4000 RPM) has 30 more torque (in Nm) than 2006 Porsche Boxster. (270 Nm @ 4700 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2006 Porsche Boxster.
Compare all specifications:
| 2003 Opel Signum | 2006 Porsche Boxster | |
| Make | Opel | Porsche |
| Model | Signum | Boxster |
| Year Released | 2003 | 2006 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 3173 cc | 2686 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 207 HP | 240 HP |
| Engine RPM | 6200 RPM | 6400 RPM |
| Torque | 300 Nm | 270 Nm |
| Torque RPM | 4000 RPM | 4700 RPM |
| Engine Bore Size | 87.5 mm | 85.5 mm |
| Engine Stroke Size | 88 mm | 78 mm |
| Top Speed | 235 km/hour | 253 km/hour |
| Acceleration 0-100mph | 8.5 seconds | 6.4 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1613 kg | 1735 kg |
| Vehicle Length | 4640 mm | 4370 mm |
| Vehicle Width | 1800 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2840 mm | 2420 mm |
| Fuel Consumption | 7.8 L/100km | 8.1 L/100km |
| Fuel Consumption City | 15.7 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 60 L | 64 L |
