1989 Pontiac Grand Am vs. 1998 Porsche 911
To start off, 1998 Porsche 911 is newer by 9 year(s). Which means there will be less support and parts availability for 1989 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 1989 Pontiac Grand Am would be higher. At 3,387 cc (6 cylinders), 1998 Porsche 911 is equipped with a bigger engine. In terms of performance, 1998 Porsche 911 (296 HP @ 6800 RPM) has 133 more horse power than 1989 Pontiac Grand Am. (163 HP @ 5600 RPM) In normal driving conditions, 1998 Porsche 911 should accelerate faster than 1989 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 1998 Porsche 911 weights approximately 145 kg more than 1989 Pontiac Grand Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1998 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1989 Pontiac Grand Am. In wet, icy, snow, or gravel driving conditions, 1998 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, 1998 Porsche 911 (350 Nm @ 4600 RPM) has 113 more torque (in Nm) than 1989 Pontiac Grand Am. (237 Nm @ 4000 RPM). This means 1998 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1989 Pontiac Grand Am.
Compare all specifications:
| 1989 Pontiac Grand Am | 1998 Porsche 911 | |
| Make | Pontiac | Porsche |
| Model | Grand Am | 911 |
| Year Released | 1989 | 1998 |
| Engine Position | Front | Rear |
| Engine Size | 1996 cc | 3387 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 163 HP | 296 HP |
| Engine RPM | 5600 RPM | 6800 RPM |
| Torque | 237 Nm | 350 Nm |
| Torque RPM | 4000 RPM | 4600 RPM |
| Engine Bore Size | 86 mm | 96 mm |
| Engine Stroke Size | 86 mm | 78 mm |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1235 kg | 1380 kg |
| Vehicle Length | 4520 mm | 4440 mm |
| Vehicle Width | 1710 mm | 1770 mm |
| Vehicle Height | 1340 mm | 1310 mm |
| Wheelbase Size | 2630 mm | 2360 mm |
| Fuel Tank Capacity | 69 L | 63 L |
