2008 Audi A4 vs. 1991 Audi 100
To start off, 2008 Audi A4 is newer by 17 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, 2008 Audi A4 (161 HP @ 5700 RPM) has 48 more horse power than 1991 Audi 100. (113 HP @ 4000 RPM). In normal driving conditions, 2008 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 67 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 (265 Nm @ 2250 RPM) has 40 more torque (in Nm) than 2008 Audi A4. (225 Nm @ 1950 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2008 Audi A4 | 1991 Audi 100 | |
| Make | Audi | Audi |
| Model | A4 | 100 |
| Year Released | 2008 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2461 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 161 HP | 113 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 225 Nm | 265 Nm |
| Torque RPM | 1950 RPM | 2250 RPM |
| Engine Bore Size | 81.1 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 95.5 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 9.4 seconds | 11.6 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1540 kg | 1473 kg |
| Vehicle Length | 4580 mm | 4810 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2700 mm |
| Fuel Tank Capacity | 70 L | 80 L |
