2007 Audi S4 vs. 1998 Opel Astra
To start off, 2007 Audi S4 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 Opel Astra. In addition, the cost of maintenance, including insurance, on 1998 Opel Astra would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 7000 RPM) has 266 more horse power than 1998 Opel Astra. (74 HP @ 4500 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 105 kg more than 1998 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1998 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2007 Audi S4 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, 2007 Audi S4 (411 Nm @ 3500 RPM) has 244 more torque (in Nm) than 1998 Opel Astra. (167 Nm @ 1800 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra.
Compare all specifications:
| 2007 Audi S4 | 1998 Opel Astra | |
| Make | Audi | Opel |
| Model | S4 | Astra |
| Year Released | 2007 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1686 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 74 HP |
| Engine RPM | 7000 RPM | 4500 RPM |
| Torque | 411 Nm | 167 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 84.5 mm | 80 mm |
| Engine Stroke Size | 93 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1275 kg | 1170 kg |
| Vehicle Length | 4580 mm | 4060 mm |
| Vehicle Width | 1790 mm | 1700 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2650 mm |
| Fuel Tank Capacity | 63 L | 53 L |
