1991 Opel Calibra vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 14 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), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 1991 Opel Calibra (201 HP @ 5600 RPM) has 26 more horse power than 2005 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 1991 Opel Calibra should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 247 kg more than 1991 Opel Calibra.
Because 1991 Opel Calibra is four wheel drive (4WD), it will have significant more traction and grip than 2005 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, 2005 Opel Signum (370 Nm @ 1900 RPM) has 90 more torque (in Nm) than 1991 Opel Calibra. (280 Nm @ 2400 RPM). This means 2005 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 | 2005 Opel Signum | |
| Make | Opel | Opel |
| Model | Calibra | Signum |
| Year Released | 1991 | 2005 |
| 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 | 201 HP | 175 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 280 Nm | 370 Nm |
| Torque RPM | 2400 RPM | 1900 RPM |
| Engine Compression Ratio | 9.0:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 241 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 | 1423 kg | 1670 kg |
| Vehicle Length | 4500 mm | 4640 mm |
| Vehicle Width | 1700 mm | 1800 mm |
| Vehicle Height | 1610 mm | 1470 mm |
| Wheelbase Size | 2450 mm | 2620 mm |
| Fuel Consumption Overall | 7.5 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 40 L | 60 L |
