2009 Audi A8 vs. 1977 Citroen GS
To start off, 2009 Audi A8 is newer by 32 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 4,172 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (330 HP @ 6500 RPM) has 275 more horse power than 1977 Citroen GS. (55 HP @ 6500 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 1977 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 965 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 2009 Audi A8 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, 2009 Audi A8 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, 2009 Audi A8 (430 Nm @ 3500 RPM) has 358 more torque (in Nm) than 1977 Citroen GS. (72 Nm @ 3500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1977 Citroen GS.
Compare all specifications:
| 2009 Audi A8 | 1977 Citroen GS | |
| Make | Audi | Citroen |
| Model | A8 | GS |
| Year Released | 2009 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1015 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 330 HP | 55 HP |
| Engine RPM | 6500 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 | 93 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 | 1855 kg | 890 kg |
| Vehicle Length | 5060 mm | 4130 mm |
| Vehicle Width | 1900 mm | 1620 mm |
| Vehicle Height | 1450 mm | 1360 mm |
| Wheelbase Size | 2950 mm | 2560 mm |
| Fuel Tank Capacity | 90 L | 43 L |
