2003 Opel Signum vs. 2011 Opel Zafira
To start off, 2011 Opel Zafira is newer by 8 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 3,175 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2011 Opel Zafira (238 HP @ 5600 RPM) has 29 more horse power than 2003 Opel Signum. (209 HP @ 6200 RPM) In normal driving conditions, 2011 Opel Zafira should accelerate faster than 2003 Opel Signum.
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, 2011 Opel Zafira (320 Nm @ 2400 RPM) has 20 more torque (in Nm) than 2003 Opel Signum. (300 Nm @ 4000 RPM). This means 2011 Opel Zafira will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2011 Opel Zafira | |
| Make | Opel | Opel |
| Model | Signum | Zafira |
| Year Released | 2003 | 2011 |
| Body Type | Hatchback | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3175 cc | 1997 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 209 HP | 238 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 300 Nm | 320 Nm |
| Torque RPM | 4000 RPM | 2400 RPM |
| Engine Bore Size | 87.5 mm | 86 mm |
| Engine Stroke Size | 88 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 4640 mm | 4510 mm |
| Vehicle Width | 1800 mm | 1690 mm |
| Vehicle Height | 1470 mm | 1810 mm |
| Wheelbase Size | 2840 mm | 2700 mm |
| Fuel Tank Capacity | 60 L | 58 L |
