2005 Audi S4 vs. 2008 Opel Vectra
To start off, 2008 Opel Vectra is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 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 167 more horse power than 2008 Opel Vectra. (173 HP @ 5500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2008 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 355 kg more than 2008 Opel Vectra. 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 145 more torque (in Nm) than 2008 Opel Vectra. (265 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Vectra.
Compare all specifications:
| 2005 Audi S4 | 2008 Opel Vectra | |
| Make | Audi | Opel |
| Model | S4 | Vectra |
| Year Released | 2005 | 2008 |
| Body Type | Convertible | Sedan |
| 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 | 173 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 410 Nm | 265 Nm |
| Engine Bore Size | 85 mm | 86 mm |
| Engine Stroke Size | 93 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 9.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1485 kg |
| Vehicle Length | 4580 mm | 4600 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2710 mm |
| Fuel Consumption Overall | 11.8 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 63 L | 61 L |
