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 2,461 cc (5 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2009 Audi A5 (169 HP @ 4200 RPM) has 56 more horse power than 1991 Audi 100. (113 HP @ 4000 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 150 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 (350 Nm @ 1750 RPM) has 86 more torque (in Nm) than 1991 Audi 100. (264 Nm @ 2250 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 | 2461 cc | 1968 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 169 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 264 Nm | 350 Nm |
| Torque RPM | 2250 RPM | 1750 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 95.5 mm | 95.5 mm |
| Engine Compression Ratio | 21.0:1 | 16.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 193 km/hour | 230 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1470 kg |
| Vehicle Length | 4800 mm | 4630 mm |
| Vehicle Width | 1790 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1380 mm |
| Wheelbase Size | 2700 mm | 2760 mm |
| Fuel Consumption Overall | 4.8 L/100km | 5.6 L/100km |
| Fuel Tank Capacity | 80 L | 65 L |
