1991 Audi 100 vs. 2006 Audi A4
To start off, 2006 Audi A4 is newer by 15 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 3,129 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (255 HP @ 6500 RPM) has 29 more horse power than 1991 Audi 100. (226 HP @ 5900 RPM) In normal driving conditions, 2006 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 266 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 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 @ 1950 RPM) has 20 more torque (in Nm) than 2006 Audi A4. (330 Nm @ 3250 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 1991 Audi 100 | 2006 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1991 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 3129 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 226 HP | 255 HP |
| Engine RPM | 5900 RPM | 6500 RPM |
| Torque | 350 Nm | 330 Nm |
| Torque RPM | 1950 RPM | 3250 RPM |
| Engine Bore Size | 81 mm | 84.5 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1614 kg | 1880 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1810 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2700 mm | 2660 mm |
| Fuel Consumption Highway | 9.5 L/100km | 8.7 L/100km |
| Fuel Consumption City | 14.2 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 8.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
