2005 Audi S4 vs. 1976 Citroen GS
To start off, 2005 Audi S4 is newer by 29 year(s). Which means there will be less support and parts availability for 1976 Citroen GS. In addition, the cost of maintenance, including insurance, on 1976 Citroen GS would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 285 more horse power than 1976 Citroen GS. (55 HP @ 6500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1976 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 950 kg more than 1976 Citroen GS. 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 S4 (410 Nm) has 338 more torque (in Nm) than 1976 Citroen GS. (72 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1976 Citroen GS.
Compare all specifications:
| 2005 Audi S4 | 1976 Citroen GS | |
| Make | Audi | Citroen |
| Model | S4 | GS |
| Year Released | 2005 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1015 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 55 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 410 Nm | 72 Nm |
| Engine Bore Size | 85 mm | 74 mm |
| Engine Stroke Size | 93 mm | 59 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1840 kg | 890 kg |
| Vehicle Length | 4580 mm | 4130 mm |
| Vehicle Width | 1780 mm | 1620 mm |
| Vehicle Height | 1400 mm | 1360 mm |
| Wheelbase Size | 2660 mm | 2560 mm |
| Fuel Tank Capacity | 63 L | 43 L |
