2005 Audi A4 vs. 1998 Opel Astra
To start off, 2005 Audi A4 is newer by 7 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 2,393 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (177 HP @ 1500 RPM) has 103 more horse power than 1998 Opel Astra. (74 HP @ 4500 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 420 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 2005 Audi A4 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, 2005 Audi A4 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 Audi A4 (370 Nm @ 1500 RPM) has 203 more torque (in Nm) than 1998 Opel Astra. (167 Nm @ 1800 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra. 2005 Audi A4 has automatic transmission and 1998 Opel Astra has manual transmission. 1998 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 1998 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2005 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1686 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 177 HP | 74 HP |
| Engine RPM | 1500 RPM | 4500 RPM |
| Torque | 370 Nm | 167 Nm |
| Torque RPM | 1500 RPM | 1800 RPM |
| Engine Bore Size | 78.3 mm | 80 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 18.5:1 | 18.4:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1590 kg | 1170 kg |
| Vehicle Length | 4550 mm | 4060 mm |
| Vehicle Width | 1770 mm | 1700 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2580 mm | 2650 mm |
| Fuel Tank Capacity | 66 L | 53 L |
