1986 Pontiac Grand Am vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 23 year(s). Which means there will be less support and parts availability for 1986 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 1986 Pontiac Grand Am would be higher. At 3,600 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (414 HP @ 6000 RPM) has 324 more horse power than 1986 Pontiac Grand Am. (90 HP @ 4400 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 1986 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 400 kg more than 1986 Pontiac Grand Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1986 Pontiac Grand Am. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Porsche 911 (560 Nm @ 2700 RPM) has 381 more torque (in Nm) than 1986 Pontiac Grand Am. (179 Nm @ 2800 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1986 Pontiac Grand Am. 2009 Porsche 911 has automatic transmission and 1986 Pontiac Grand Am has manual transmission. 1986 Pontiac Grand Am will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Porsche 911 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1986 Pontiac Grand Am | 2009 Porsche 911 | |
| Make | Pontiac | Porsche |
| Model | Grand Am | 911 |
| Year Released | 1986 | 2009 |
| Engine Position | Front | Rear |
| Engine Size | 2471 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 90 HP | 414 HP |
| Engine RPM | 4400 RPM | 6000 RPM |
| Torque | 179 Nm | 560 Nm |
| Torque RPM | 2800 RPM | 2700 RPM |
| Engine Bore Size | 101.6 mm | 100 mm |
| Engine Stroke Size | 76.2 mm | 76.4 mm |
| Engine Compression Ratio | 9.0:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Vehicle Weight | 1130 kg | 1530 kg |
| Vehicle Length | 4520 mm | 4440 mm |
| Vehicle Width | 1710 mm | 1300 mm |
| Vehicle Height | 1340 mm | 1840 mm |
| Wheelbase Size | 2630 mm | 2360 mm |
