1999 Audi A4 vs. 1991 Audi 100
To start off, 1999 Audi A4 is newer by 8 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, 1999 Audi A4 (248 HP @ 4150 RPM) has 135 more horse power than 1991 Audi 100. (113 HP @ 4000 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 43 kg more than 1999 Audi A4.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Audi 100. In wet, icy, snow, or gravel driving conditions, 1999 Audi A4 will offer significantly more control. 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, 1999 Audi A4 (339 Nm @ 1900 RPM) has 74 more torque (in Nm) than 1991 Audi 100. (265 Nm @ 2250 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1999 Audi A4 | 1991 Audi 100 | |
| Make | Audi | Audi |
| Model | A4 | 100 |
| Year Released | 1999 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2461 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 248 HP | 113 HP |
| Engine RPM | 4150 RPM | 4000 RPM |
| Torque | 339 Nm | 265 Nm |
| Torque RPM | 1900 RPM | 2250 RPM |
| Engine Bore Size | 79.5 mm | 81 mm |
| Engine Stroke Size | 95.5 mm | 95.5 mm |
| Fuel Type | Diesel | Diesel |
| Top Speed | 190 km/hour | 187 km/hour |
| Acceleration 0-100mph | 11.9 seconds | 11.6 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1430 kg | 1473 kg |
| Vehicle Length | 4480 mm | 4810 mm |
| Vehicle Width | 1740 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2610 mm | 2700 mm |
| Fuel Tank Capacity | 60 L | 80 L |
