1973 Citroen GS vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 34 year(s). Which means there will be less support and parts availability for 1973 Citroen GS. In addition, the cost of maintenance, including insurance, on 1973 Citroen GS would be higher. At 5,357 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (315 HP @ 5200 RPM) has 208 more horse power than 1973 Citroen GS. (107 HP @ 6500 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1973 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1295 kg more than 1973 Citroen GS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1973 Citroen GS. In wet, icy, snow, or gravel driving conditions, 2007 GMC Sierra 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, 2007 GMC Sierra (458 Nm @ 4400 RPM) has 321 more torque (in Nm) than 1973 Citroen GS. (137 Nm @ 3000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen GS.
Compare all specifications:
| 1973 Citroen GS | 2007 GMC Sierra | |
| Make | Citroen | GMC |
| Model | GS | Sierra |
| Year Released | 1973 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1990 cc | 5357 cc |
| Engine Type | dual-disk rotary | V |
| Horse Power | 107 HP | 315 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 137 Nm | 458 Nm |
| Torque RPM | 3000 RPM | 4400 RPM |
| Engine Compression Ratio | 9.0:1 | 9.4:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1140 kg | 2435 kg |
| Vehicle Length | 4130 mm | 6320 mm |
| Vehicle Width | 1620 mm | 2040 mm |
| Vehicle Height | 1380 mm | 1880 mm |
| Wheelbase Size | 2570 mm | 4010 mm |
| Fuel Tank Capacity | 56 L | 129 L |
