1975 Audi 100 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 34 year(s). Which means there will be less support and parts availability for 1975 Audi 100. In addition, the cost of maintenance, including insurance, on 1975 Audi 100 would be higher. At 1,798 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (158 HP @ 4500 RPM) has 73 more horse power than 1975 Audi 100. (85 HP @ 5800 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 1975 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1975 Audi 100 weights approximately 120 kg more than 2009 Audi A4.
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, 2009 Audi A4 (250 Nm @ 1500 RPM) has 126 more torque (in Nm) than 1975 Audi 100. (124 Nm @ 3500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Audi 100.
Compare all specifications:
| 1975 Audi 100 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | 100 | A4 |
| Year Released | 1975 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1588 cc | 1798 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 158 HP |
| Engine RPM | 5800 RPM | 4500 RPM |
| Torque | 124 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1050 kg | 930 kg |
| Vehicle Length | 4590 mm | 4710 mm |
| Vehicle Width | 1730 mm | 2010 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2690 mm | 2810 mm |
| Fuel Tank Capacity | 58 L | 65 L |
