1991 Audi 100 vs. 2005 Audi A4
To start off, 2005 Audi A4 is newer by 14 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, 2005 Audi A4 (170 HP @ 6500 RPM) has 57 more horse power than 1991 Audi 100. (113 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 336 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, 1991 Audi 100 (264 Nm) has 34 more torque (in Nm) than 2005 Audi A4. (230 Nm). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 1991 Audi 100 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2461 cc | 1786 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 170 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 264 Nm | 230 Nm |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 95.5 mm | 86 mm |
| Engine Compression Ratio | 21.0:1 | 9.3:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1656 kg |
| Vehicle Length | 4800 mm | 4580 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2700 mm | 2770 mm |
| Fuel Consumption | 6.2 L/100km | 7.8 L/100km |
| Fuel Consumption City | 7.6 L/100km | 10.2 L/100km |
| Fuel Consumption Overall | 4.8 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
