1991 Audi 100 vs. 2009 Audi A5
To start off, 2009 Audi A5 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2009 Audi A5 (187 HP @ 3500 RPM) has 16 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2009 Audi A5 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A5 weights approximately 125 kg more than 1991 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 (400 Nm @ 1400 RPM) has 150 more torque (in Nm) than 1991 Audi 100. (250 Nm @ 3000 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2009 Audi A5 | |
| Make | Audi | Audi |
| Model | 100 | A5 |
| Year Released | 1991 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2698 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 171 HP | 187 HP |
| Engine RPM | 5500 RPM | 3500 RPM |
| Torque | 250 Nm | 400 Nm |
| Torque RPM | 3000 RPM | 1400 RPM |
| Engine Bore Size | 82.5 mm | 83 mm |
| Engine Stroke Size | 86.4 mm | 83.1 mm |
| Engine Compression Ratio | 10.3:1 | 16.8:1 |
| Top Speed | 212 km/hour | 232 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 7.9 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1575 kg |
| Vehicle Length | 4800 mm | 4630 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1380 mm |
| Wheelbase Size | 2690 mm | 2760 mm |
| Fuel Tank Capacity | 80 L | 65 L |
