2004 Audi RS4 vs. 1991 Mercedes-Benz 400
To start off, 2004 Audi RS4 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, 2004 Audi RS4 (376 HP @ 6300 RPM) has 89 more horse power than 1991 Mercedes-Benz 400. (287 HP @ 5700 RPM). In normal driving conditions, 2004 Audi RS4 should accelerate faster than 1991 Mercedes-Benz 400. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 400 weights approximately 415 kg more than 2004 Audi RS4.
Because 2004 Audi RS4 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 RS4 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 RS4 (450 Nm @ 2500 RPM) has 40 more torque (in Nm) than 1991 Mercedes-Benz 400. (410 Nm @ 3900 RPM). This means 2004 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz 400.
Compare all specifications:
| 2004 Audi RS4 | 1991 Mercedes-Benz 400 | |
| Make | Audi | Mercedes-Benz |
| Model | RS4 | 400 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 4196 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 376 HP | 287 HP |
| Engine RPM | 6300 RPM | 5700 RPM |
| Torque | 450 Nm | 410 Nm |
| Torque RPM | 2500 RPM | 3900 RPM |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 2000 kg |
| Vehicle Length | 4480 mm | 5110 mm |
| Vehicle Width | 1740 mm | 1890 mm |
| Vehicle Height | 1450 mm | 1500 mm |
| Wheelbase Size | 2610 mm | 3050 mm |
