2005 GMC Sierra vs. 1975 Porsche 911
To start off, 2005 GMC Sierra is newer by 30 year(s). Which means there will be less support and parts availability for 1975 Porsche 911. In addition, the cost of maintenance, including insurance, on 1975 Porsche 911 would be higher. At 5,964 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (340 HP @ 5200 RPM) has 80 more horse power than 1975 Porsche 911. (260 HP @ 5500 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1975 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 1150 kg more than 1975 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1975 Porsche 911. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 GMC Sierra (516 Nm @ 4000 RPM) has 173 more torque (in Nm) than 1975 Porsche 911. (343 Nm @ 4000 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1975 Porsche 911. 2005 GMC Sierra has automatic transmission and 1975 Porsche 911 has manual transmission. 1975 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 GMC Sierra | 1975 Porsche 911 | |
| Make | GMC | Porsche |
| Model | Sierra | 911 |
| Year Released | 2005 | 1975 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5964 cc | 2994 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 340 HP | 260 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 516 Nm | 343 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 102 mm | 95.1 mm |
| Engine Stroke Size | 92 mm | 70.4 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 2345 kg | 1195 kg |
| Vehicle Length | 5740 mm | 4300 mm |
| Vehicle Width | 2000 mm | 1780 mm |
| Vehicle Height | 1910 mm | 1330 mm |
| Wheelbase Size | 3650 mm | 2270 mm |
