1975 Pontiac Trans Am vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 30 year(s). Which means there will be less support and parts availability for 1975 Pontiac Trans Am. In addition, the cost of maintenance, including insurance, on 1975 Pontiac Trans Am would be higher. At 6,556 cc (8 cylinders), 1975 Pontiac Trans Am is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (321 HP) has 101 more horse power than 1975 Pontiac Trans Am. (220 HP) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1975 Pontiac Trans Am.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Pontiac Trans 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, 1975 Pontiac Trans Am (434 Nm) has 64 more torque (in Nm) than 2005 Porsche 911. (370 Nm). This means 1975 Pontiac Trans Am will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911. 2005 Porsche 911 has automatic transmission and 1975 Pontiac Trans Am has manual transmission. 1975 Pontiac Trans Am will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Porsche 911 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1975 Pontiac Trans Am | 2005 Porsche 911 | |
| Make | Pontiac | Porsche |
| Model | Trans Am | 911 |
| Year Released | 1975 | 2005 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 6556 cc | 3596 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 220 HP | 321 HP |
| Torque | 434 Nm | 370 Nm |
| Engine Bore Size | 104.2 mm | 96 mm |
| Engine Stroke Size | 95.3 mm | 82.8 mm |
| Engine Compression Ratio | 8.1:1 | 11.3:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 5040 mm | 4440 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1260 mm | 1310 mm |
| Wheelbase Size | 2750 mm | 2360 mm |
