1991 Opel Calibra vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Opel Calibra. In addition, the cost of maintenance, including insurance, on 1991 Opel Calibra would be higher. At 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 60 more horse power than 1991 Opel Calibra. (115 HP @ 5200 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 1991 Opel Calibra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 480 kg more than 1991 Opel Calibra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Opel Calibra is four wheel drive (4WD), it will have significant more traction and grip than 2006 Opel Signum. In wet, icy, snow, or gravel driving conditions, 1991 Opel Calibra 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, 2006 Opel Signum (370 Nm @ 1900 RPM) has 196 more torque (in Nm) than 1991 Opel Calibra. (174 Nm @ 2600 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Calibra.
Compare all specifications:
| 1991 Opel Calibra | 2006 Opel Signum | |
| Make | Opel | Opel |
| Model | Calibra | Signum |
| Year Released | 1991 | 2006 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 115 HP | 175 HP |
| Engine RPM | 5200 RPM | 4000 RPM |
| Torque | 174 Nm | 370 Nm |
| Torque RPM | 2600 RPM | 1900 RPM |
| Engine Bore Size | 86 mm | 87.5 mm |
| Engine Stroke Size | 86 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 246 km/hour | 221 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1190 kg | 1670 kg |
| Vehicle Length | 4500 mm | 4640 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Vehicle Height | 1330 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2840 mm |
| Fuel Tank Capacity | 75 L | 60 L |
