2005 Porsche 911 vs. 1985 Pontiac Grand Am
To start off, 2005 Porsche 911 is newer by 20 year(s). Which means there will be less support and parts availability for 1985 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 1985 Pontiac Grand Am would be higher. At 3,605 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (444 HP @ 5700 RPM) has 354 more horse power than 1985 Pontiac Grand Am. (90 HP @ 4400 RPM). In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1985 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 530 kg more than 1985 Pontiac Grand Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1985 Pontiac Grand Am. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 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 Porsche 911 (620 Nm @ 3500 RPM) has 441 more torque (in Nm) than 1985 Pontiac Grand Am. (179 Nm @ 2800 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1985 Pontiac Grand Am.
Compare all specifications:
2005 Porsche 911 | 1985 Pontiac Grand Am | |
Make | Porsche | Pontiac |
Model | 911 | Grand Am |
Year Released | 2005 | 1985 |
Engine Position | Rear | Front |
Engine Size | 3605 cc | 2471 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | boxer | in-line |
Valves per Cylinder | 4 valves | 2 valves |
Horse Power | 444 HP | 90 HP |
Engine RPM | 5700 RPM | 4400 RPM |
Torque | 620 Nm | 179 Nm |
Torque RPM | 3500 RPM | 2800 RPM |
Engine Bore Size | 100 mm | 101.6 mm |
Engine Stroke Size | 76 mm | 76.2 mm |
Engine Compression Ratio | 9.4:1 | 9.0:1 |
Fuel Type | Gasoline - Premium | Gasoline |
Drive Type | 4WD | Front |
Transmission Type | Automatic | Automatic |
Number of Seats | 4 seats | 4 seats |
Vehicle Weight | 1660 kg | 1130 kg |
Vehicle Length | 4440 mm | 4520 mm |
Vehicle Width | 1840 mm | 1710 mm |
Vehicle Height | 1300 mm | 1340 mm |
Wheelbase Size | 2360 mm | 2630 mm |