2005 GMC Sierra vs. 1990 Porsche Pan Americana
To start off, 2005 GMC Sierra is newer by 15 year(s). Which means there will be less support and parts availability for 1990 Porsche Pan Americana. In addition, the cost of maintenance, including insurance, on 1990 Porsche Pan Americana would be higher. At 5,965 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (300 HP) has 53 more horse power than 1990 Porsche Pan Americana. (247 HP). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1990 Porsche Pan Americana. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 1398 kg more than 1990 Porsche Pan Americana. 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 1990 Porsche Pan Americana. 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 (488 Nm) has 178 more torque (in Nm) than 1990 Porsche Pan Americana. (310 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1990 Porsche Pan Americana.
Compare all specifications:
| 2005 GMC Sierra | 1990 Porsche Pan Americana | |
| Make | GMC | Porsche |
| Model | Sierra | Pan Americana |
| Year Released | 2005 | 1990 |
| Engine Position | Front | Rear |
| Engine Size | 5965 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 300 HP | 247 HP |
| Torque | 488 Nm | 310 Nm |
| Engine Bore Size | 102 mm | 100 mm |
| Engine Stroke Size | 92 mm | 76.4 mm |
| Engine Compression Ratio | 9.4:1 | 11.3:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 6 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2874 kg | 1476 kg |
| Vehicle Length | 6510 mm | 4210 mm |
| Vehicle Width | 2030 mm | 1870 mm |
| Vehicle Height | 1960 mm | 1310 mm |
| Wheelbase Size | 4250 mm | 2280 mm |
