2005 GMC Sierra vs. 1998 Porsche 911
To start off, 2005 GMC Sierra is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Porsche 911. In addition, the cost of maintenance, including insurance, on 1998 Porsche 911 would be higher. At 5,964 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 1998 Porsche 911 (443 HP @ 6000 RPM) has 103 more horse power than 2005 GMC Sierra. (340 HP @ 5200 RPM) In normal driving conditions, 1998 Porsche 911 should accelerate faster than 2005 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 889 kg more than 1998 Porsche 911.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 1998 Porsche 911 (583 Nm @ 4500 RPM) has 67 more torque (in Nm) than 2005 GMC Sierra. (516 Nm @ 4000 RPM). This means 1998 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 GMC Sierra. 2005 GMC Sierra has automatic transmission and 1998 Porsche 911 has manual transmission. 1998 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 | 1998 Porsche 911 | |
| Make | GMC | Porsche |
| Model | Sierra | 911 |
| Year Released | 2005 | 1998 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5964 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 340 HP | 443 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 516 Nm | 583 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 102 mm | 100 mm |
| Engine Stroke Size | 92 mm | 76.4 mm |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 2345 kg | 1456 kg |
| Vehicle Length | 5740 mm | 4270 mm |
| Vehicle Width | 2000 mm | 1800 mm |
| Vehicle Height | 1910 mm | 1270 mm |
| Wheelbase Size | 3650 mm | 2280 mm |
