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 2,226 cc (5 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (226 HP @ 5900 RPM) has 55 more horse power than 2005 Audi A4. (171 HP @ 6200 RPM). In normal driving conditions, 1991 Audi 100 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 46 kg more than 1991 Audi 100.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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 (350 Nm) has 125 more torque (in Nm) than 2005 Audi A4. (225 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 | 2226 cc | 1786 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 226 HP | 171 HP |
| Engine RPM | 5900 RPM | 6200 RPM |
| Torque | 350 Nm | 225 Nm |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 9.3:1 | 9.3:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1614 kg | 1660 kg |
| Vehicle Length | 4800 mm | 4550 mm |
| Vehicle Width | 1810 mm | 1770 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2700 mm | 2770 mm |
| Fuel Consumption Highway | 9.5 L/100km | 8.4 L/100km |
| Fuel Consumption City | 14.2 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 8.7 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
