2005 Audi RS6 vs. 1973 Mercedes-Benz 450
To start off, 2005 Audi RS6 is newer by 32 year(s). Which means there will be less support and parts availability for 1973 Mercedes-Benz 450. In addition, the cost of maintenance, including insurance, on 1973 Mercedes-Benz 450 would be higher. At 4,520 cc (8 cylinders), 1973 Mercedes-Benz 450 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 219 more horse power than 1973 Mercedes-Benz 450. (225 HP @ 5000 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 1973 Mercedes-Benz 450. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 123 kg more than 1973 Mercedes-Benz 450. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1973 Mercedes-Benz 450. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 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 RS6 (580 Nm @ 1950 RPM) has 202 more torque (in Nm) than 1973 Mercedes-Benz 450. (378 Nm @ 3000 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1973 Mercedes-Benz 450.
Compare all specifications:
| 2005 Audi RS6 | 1973 Mercedes-Benz 450 | |
| Make | Audi | Mercedes-Benz |
| Model | RS6 | 450 |
| Year Released | 2005 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4520 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 444 HP | 225 HP |
| Engine RPM | 5700 RPM | 5000 RPM |
| Torque | 580 Nm | 378 Nm |
| Torque RPM | 1950 RPM | 3000 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 93 mm | 85 mm |
| Engine Compression Ratio | 9.0:1 | 8.8:1 |
| Top Speed | 250 km/hour | 211 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1865 kg | 1742 kg |
| Vehicle Length | 4840 mm | 4970 mm |
| Vehicle Width | 1860 mm | 1870 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2760 mm | 2870 mm |
