2007 Opel Signum vs. 2003 Volkswagen Passat
To start off, 2007 Opel Signum is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Volkswagen Passat. In addition, the cost of maintenance, including insurance, on 2003 Volkswagen Passat would be higher. At 3,999 cc (8 cylinders), 2003 Volkswagen Passat is equipped with a bigger engine. In terms of performance, 2003 Volkswagen Passat (270 HP @ 4000 RPM) has 95 more horse power than 2007 Opel Signum. (175 HP @ 4000 RPM) In normal driving conditions, 2003 Volkswagen Passat should accelerate faster than 2007 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 122 kg more than 2003 Volkswagen Passat.
Because 2003 Volkswagen Passat is four wheel drive (4WD), it will have significant more traction and grip than 2007 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2003 Volkswagen Passat 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, both vehicles can yield 370 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2003 Volkswagen Passat has automatic transmission and 2007 Opel Signum has manual transmission. 2007 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Volkswagen Passat will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Opel Signum | 2003 Volkswagen Passat | |
| Make | Opel | Volkswagen |
| Model | Signum | Passat |
| Year Released | 2007 | 2003 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 3999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 270 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 370 Nm | 370 Nm |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1670 kg | 1548 kg |
| Vehicle Length | 4640 mm | 4710 mm |
| Vehicle Width | 1800 mm | 1750 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2680 mm |
| Fuel Tank Capacity | 60 L | 55 L |
