2005 Porsche Boxster vs. 2007 Opel Signum
To start off, 2007 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Porsche Boxster. In addition, the cost of maintenance, including insurance, on 2005 Porsche Boxster would be higher. At 3,173 cc (6 cylinders), 2007 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Porsche Boxster (225 HP @ 6300 RPM) has 17 more horse power than 2007 Opel Signum. (208 HP @ 6200 RPM). In normal driving conditions, 2005 Porsche Boxster should accelerate faster than 2007 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 260 kg more than 2005 Porsche Boxster.
Because 2005 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 2005 Porsche Boxster. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Opel Signum (300 Nm @ 4000 RPM) has 40 more torque (in Nm) than 2005 Porsche Boxster. (260 Nm @ 4700 RPM). This means 2007 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche Boxster. 2007 Opel Signum has automatic transmission and 2005 Porsche Boxster has manual transmission. 2005 Porsche Boxster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Porsche Boxster | 2007 Opel Signum | |
| Make | Porsche | Opel |
| Model | Boxster | Signum |
| Year Released | 2005 | 2007 |
| Body Type | Convertible | Hatchback |
| Engine Position | Middle | Front |
| Engine Size | 2687 cc | 3173 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 208 HP |
| Engine RPM | 6300 RPM | 6200 RPM |
| Torque | 260 Nm | 300 Nm |
| Torque RPM | 4700 RPM | 4000 RPM |
| Engine Bore Size | 85.5 mm | 87.5 mm |
| Engine Stroke Size | 78 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1350 kg | 1610 kg |
| Vehicle Length | 4320 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1300 mm | 1470 mm |
| Wheelbase Size | 2360 mm | 2840 mm |
