2005 Audi S4 vs. 1977 Citroen GS
To start off, 2005 Audi S4 is newer by 28 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 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 284 more horse power than 1977 Citroen GS. (55 HP @ 6500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1977 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 785 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.
Because 2005 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1977 Citroen GS. In wet, icy, snow, or gravel driving conditions, 2005 Audi S4 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, 2005 Audi S4 (430 Nm @ 3500 RPM) has 358 more torque (in Nm) than 1977 Citroen GS. (72 Nm @ 3500 RPM). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1977 Citroen GS.
Compare all specifications:
| 2005 Audi S4 | 1977 Citroen GS | |
| Make | Audi | Citroen |
| Model | S4 | GS |
| Year Released | 2005 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1015 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 339 HP | 55 HP |
| Engine RPM | 7000 RPM | 6500 RPM |
| Torque | 430 Nm | 72 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 74 mm |
| Engine Stroke Size | 92.8 mm | 59 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1675 kg | 890 kg |
| Vehicle Length | 4580 mm | 4130 mm |
| Vehicle Width | 1790 mm | 1620 mm |
| Vehicle Height | 1420 mm | 1360 mm |
| Wheelbase Size | 2580 mm | 2560 mm |
| Fuel Tank Capacity | 66 L | 43 L |
