2009 Audi A4 vs. 1991 Porsche 928
To start off, 2009 Audi A4 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Porsche 928. In addition, the cost of maintenance, including insurance, on 1991 Porsche 928 would be higher. At 5,397 cc (8 cylinders), 1991 Porsche 928 is equipped with a bigger engine. In terms of performance, 1991 Porsche 928 (345 HP @ 5700 RPM) has 128 more horse power than 2009 Audi A4. (217 HP @ 5900 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 928 weights approximately 145 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 1991 Porsche 928 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1991 Porsche 928. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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, 1991 Porsche 928 (500 Nm @ 4250 RPM) has 200 more torque (in Nm) than 2009 Audi A4. (300 Nm @ 2200 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 1991 Porsche 928 | |
| Make | Audi | Porsche |
| Model | A4 | 928 |
| Year Released | 2009 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 5397 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 217 HP | 345 HP |
| Engine RPM | 5900 RPM | 5700 RPM |
| Torque | 300 Nm | 500 Nm |
| Torque RPM | 2200 RPM | 4250 RPM |
| Engine Bore Size | 82.5 mm | 100.1 mm |
| Engine Stroke Size | 92.8 mm | 85.9 mm |
| Engine Compression Ratio | 10.5:1 | 10.4:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1455 kg | 1600 kg |
| Vehicle Length | 4610 mm | 4450 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1400 mm | 1290 mm |
| Wheelbase Size | 2660 mm | 2510 mm |
| Fuel Tank Capacity | 70 L | 86 L |
