1999 GMC Sierra vs. 1974 Porsche 911
To start off, 1999 GMC Sierra is newer by 25 year(s). Which means there will be less support and parts availability for 1974 Porsche 911. In addition, the cost of maintenance, including insurance, on 1974 Porsche 911 would be higher. At 4,784 cc (6 cylinders), 1999 GMC Sierra is equipped with a bigger engine. In terms of performance, 1999 GMC Sierra (267 HP @ 5200 RPM) has 116 more horse power than 1974 Porsche 911. (151 HP @ 5700 RPM). In normal driving conditions, 1999 GMC Sierra should accelerate faster than 1974 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 1999 GMC Sierra weights approximately 730 kg more than 1974 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1974 Porsche 911. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 GMC Sierra (386 Nm @ 4000 RPM) has 146 more torque (in Nm) than 1974 Porsche 911. (240 Nm @ 3800 RPM). This means 1999 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1974 Porsche 911.
Compare all specifications:
| 1999 GMC Sierra | 1974 Porsche 911 | |
| Make | GMC | Porsche |
| Model | Sierra | 911 |
| Year Released | 1999 | 1974 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4784 cc | 2687 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 267 HP | 151 HP |
| Engine RPM | 5200 RPM | 5700 RPM |
| Torque | 386 Nm | 240 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1805 kg | 1075 kg |
| Vehicle Length | 5170 mm | 4300 mm |
| Vehicle Width | 2000 mm | 1620 mm |
| Vehicle Height | 1810 mm | 1330 mm |
| Wheelbase Size | 3030 mm | 2270 mm |
