1999 Mercedes-Benz S vs. 2009 Audi A5
To start off, 2009 Audi A5 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 1999 Mercedes-Benz S would be higher. At 4,966 cc (8 cylinders), 1999 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 1999 Mercedes-Benz S (302 HP @ 5500 RPM) has 65 more horse power than 2009 Audi A5. (237 HP @ 4000 RPM). In normal driving conditions, 1999 Mercedes-Benz S should accelerate faster than 2009 Audi A5. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz S weights approximately 244 kg more than 2009 Audi A5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A5 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Mercedes-Benz S. In wet, icy, snow, or gravel driving conditions, 2009 Audi A5 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, 2009 Audi A5 (500 Nm @ 1500 RPM) has 40 more torque (in Nm) than 1999 Mercedes-Benz S. (460 Nm @ 2700 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 1999 Mercedes-Benz S.
Compare all specifications:
| 1999 Mercedes-Benz S | 2009 Audi A5 | |
| Make | Mercedes-Benz | Audi |
| Model | S | A5 |
| Year Released | 1999 | 2009 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4966 cc | 2965 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 302 HP | 237 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 460 Nm | 500 Nm |
| Torque RPM | 2700 RPM | 1500 RPM |
| Engine Bore Size | 97 mm | 83 mm |
| Engine Stroke Size | 84 mm | 91.4 mm |
| Engine Compression Ratio | 10.0:1 | 16.8:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1854 kg | 1610 kg |
| Vehicle Length | 5170 mm | 4630 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 3090 mm | 2760 mm |
| Fuel Tank Capacity | 88 L | 64 L |
