1991 Audi 100 vs. 2011 Audi A4
To start off, 2011 Audi A4 is newer by 20 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, 2011 Audi A4 (211 HP @ 4300 RPM) has 40 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2011 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi A4 weights approximately 145 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.
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, 2011 Audi A4 (349 Nm @ 1500 RPM) has 98 more torque (in Nm) than 1991 Audi 100. (251 Nm @ 3000 RPM). This means 2011 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2011 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 171 HP | 211 HP |
| Engine RPM | 5500 RPM | 4300 RPM |
| Torque | 251 Nm | 349 Nm |
| Torque RPM | 3000 RPM | 1500 RPM |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1500 kg | 1645 kg |
| Vehicle Length | 4800 mm | 4704 mm |
| Vehicle Width | 1780 mm | 1829 mm |
| Vehicle Height | 1450 mm | 1427 mm |
| Wheelbase Size | 2690 mm | 2809 mm |
| Fuel Consumption Highway | 10 L/100km | 7.6 L/100km |
| Fuel Consumption City | 14 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 80 L | 65 L |
