2005 Audi S4 vs. 1991 Opel Calibra
To start off, 2005 Audi S4 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 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 139 more horse power than 1991 Opel Calibra. (201 HP @ 5600 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1991 Opel Calibra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 417 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.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 130 more torque (in Nm) than 1991 Opel Calibra. (280 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Calibra.
Compare all specifications:
| 2005 Audi S4 | 1991 Opel Calibra | |
| Make | Audi | Opel |
| Model | S4 | Calibra |
| Year Released | 2005 | 1991 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 201 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 410 Nm | 280 Nm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1840 kg | 1423 kg |
| Vehicle Length | 4580 mm | 4500 mm |
| Vehicle Width | 1780 mm | 1700 mm |
| Vehicle Height | 1400 mm | 1610 mm |
| Wheelbase Size | 2660 mm | 2450 mm |
| Fuel Consumption Overall | 11.8 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 63 L | 40 L |
