2004 Audi A6 vs. 1991 Porsche 928
To start off, 2004 Audi A6 is newer by 13 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 167 more horse power than 2004 Audi A6. (178 HP @ 4000 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 130 kg more than 1991 Porsche 928.
Because 2004 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Porsche 928. In wet, icy, snow, or gravel driving conditions, 2004 Audi A6 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, 1991 Porsche 928 (500 Nm @ 4250 RPM) has 130 more torque (in Nm) than 2004 Audi A6. (370 Nm @ 1500 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 1991 Porsche 928 | |
| Make | Audi | Porsche |
| Model | A6 | 928 |
| Year Released | 2004 | 1991 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 5397 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 178 HP | 345 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 370 Nm | 500 Nm |
| Torque RPM | 1500 RPM | 4250 RPM |
| Engine Bore Size | 78.3 mm | 100.1 mm |
| Engine Stroke Size | 86.4 mm | 85.9 mm |
| Engine Compression Ratio | 19.0:1 | 10.4:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1730 kg | 1600 kg |
| Vehicle Length | 4800 mm | 4450 mm |
| Vehicle Width | 1820 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1290 mm |
| Wheelbase Size | 2890 mm | 2510 mm |
| Fuel Tank Capacity | 70 L | 86 L |
