2009 Audi A4 vs. 1981 Porsche 928
To start off, 2009 Audi A4 is newer by 28 year(s). Which means there will be less support and parts availability for 1981 Porsche 928. In addition, the cost of maintenance, including insurance, on 1981 Porsche 928 would be higher. At 4,472 cc (8 cylinders), 1981 Porsche 928 is equipped with a bigger engine. In terms of performance, 1981 Porsche 928 (238 HP @ 5250 RPM) has 27 more horse power than 2009 Audi A4. (211 HP @ 4300 RPM) In normal driving conditions, 1981 Porsche 928 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1981 Porsche 928 weights approximately 418 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Porsche 928. In wet, icy, snow, or gravel driving conditions, 2009 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, 1981 Porsche 928 (356 Nm @ 3600 RPM) has 6 more torque (in Nm) than 2009 Audi A4. (350 Nm @ 1500 RPM). This means 1981 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2009 Audi A4 has automatic transmission and 1981 Porsche 928 has manual transmission. 1981 Porsche 928 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 1981 Porsche 928 | |
| Make | Audi | Porsche |
| Model | A4 | 928 |
| Year Released | 2009 | 1981 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 4472 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 211 HP | 238 HP |
| Engine RPM | 4300 RPM | 5250 RPM |
| Torque | 350 Nm | 356 Nm |
| Torque RPM | 1500 RPM | 3600 RPM |
| Engine Bore Size | 82.5 mm | 95 mm |
| Engine Stroke Size | 92.8 mm | 78.9 mm |
| Engine Compression Ratio | 9.6:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1032 kg | 1450 kg |
| Vehicle Length | 4710 mm | 4450 mm |
| Vehicle Width | 1840 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2820 mm | 2510 mm |
| Fuel Tank Capacity | 70 L | 85 L |
