2004 Audi A4 vs. 1977 Citroen GS
To start off, 2004 Audi A4 is newer by 27 year(s). Which means there will be less support and parts availability for 1977 Citroen GS. In addition, the cost of maintenance, including insurance, on 1977 Citroen GS would be higher. At 1,968 cc (4 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (137 HP @ 4000 RPM) has 82 more horse power than 1977 Citroen GS. (55 HP @ 6500 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 1977 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 592 kg more than 1977 Citroen GS. 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, 2004 Audi A4 (310 Nm @ 1740 RPM) has 238 more torque (in Nm) than 1977 Citroen GS. (72 Nm @ 3500 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1977 Citroen GS.
Compare all specifications:
| 2004 Audi A4 | 1977 Citroen GS | |
| Make | Audi | Citroen |
| Model | A4 | GS |
| Year Released | 2004 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1015 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 137 HP | 55 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 310 Nm | 72 Nm |
| Torque RPM | 1740 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 74 mm |
| Engine Stroke Size | 95.5 mm | 59 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1482 kg | 890 kg |
| Vehicle Length | 4590 mm | 4130 mm |
| Vehicle Width | 1780 mm | 1620 mm |
| Vehicle Height | 1430 mm | 1360 mm |
| Wheelbase Size | 2580 mm | 2560 mm |
| Fuel Tank Capacity | 70 L | 43 L |
