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 2,976 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (217 HP @ 4000 RPM) has 104 more horse power than 1991 Audi 100. (113 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 378 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.
Let's talk about torque, 2005 Audi A4 (300 Nm) has 36 more torque (in Nm) than 1991 Audi 100. (264 Nm). This means 2005 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 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2461 cc | 2976 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 113 HP | 217 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 264 Nm | 300 Nm |
| Engine Bore Size | 81 mm | 83 mm |
| Engine Stroke Size | 95.5 mm | 93 mm |
| Engine Compression Ratio | 21.0:1 | 10.1:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1698 kg |
| Vehicle Length | 4800 mm | 4580 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2700 mm | 2660 mm |
| Fuel Consumption | 6.2 L/100km | 8.7 L/100km |
| Fuel Consumption City | 7.6 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 4.8 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
