2004 Audi A6 vs. 1991 Mercedes-Benz 400
To start off, 2004 Audi A6 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz 400. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz 400 would be higher. At 4,196 cc (8 cylinders), 1991 Mercedes-Benz 400 is equipped with a bigger engine. In terms of performance, 1991 Mercedes-Benz 400 (286 HP @ 5700 RPM) has 65 more horse power than 2004 Audi A6. (221 HP @ 4000 RPM) In normal driving conditions, 1991 Mercedes-Benz 400 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 400 weights approximately 239 kg more than 2004 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Mercedes-Benz 400. 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, 2004 Audi A6 (430 Nm @ 1400 RPM) has 20 more torque (in Nm) than 1991 Mercedes-Benz 400. (410 Nm @ 3900 RPM). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz 400.
Compare all specifications:
| 2004 Audi A6 | 1991 Mercedes-Benz 400 | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | 400 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2974 cc | 4196 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 221 HP | 286 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 430 Nm | 410 Nm |
| Torque RPM | 1400 RPM | 3900 RPM |
| Engine Bore Size | 83 mm | 92 mm |
| Engine Stroke Size | 91.4 mm | 78.9 mm |
| Engine Compression Ratio | 17.0:1 | 10.0:1 |
| Top Speed | 243 km/hour | 245 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 7.7 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1765 kg | 2004 kg |
| Vehicle Length | 4920 mm | 5220 mm |
| Vehicle Width | 1860 mm | 1890 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 2850 mm | 3150 mm |
