2005 Audi S4 vs. 1991 Mercedes-Benz 500
To start off, 2005 Audi S4 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz 500. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz 500 would be higher. At 4,971 cc (8 cylinders), 1991 Mercedes-Benz 500 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 14 more horse power than 1991 Mercedes-Benz 500. (326 HP @ 5700 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1991 Mercedes-Benz 500. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 500 weights approximately 172 kg more than 2005 Audi S4.
Let's talk about torque, 1991 Mercedes-Benz 500 (480 Nm) has 70 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 1991 Mercedes-Benz 500 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 1991 Mercedes-Benz 500 | |
| Make | Audi | Mercedes-Benz |
| Model | S4 | 500 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 4971 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 340 HP | 326 HP |
| Engine RPM | 6300 RPM | 5700 RPM |
| Torque | 410 Nm | 480 Nm |
| Engine Bore Size | 85 mm | 96.5 mm |
| Engine Stroke Size | 93 mm | 85 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 2012 kg |
| Vehicle Length | 4580 mm | 5220 mm |
| Vehicle Width | 1780 mm | 1890 mm |
| Vehicle Height | 1400 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 3150 mm |
| Fuel Tank Capacity | 63 L | 70 L |
