2005 Porsche 911 vs. 1971 Pontiac Firebird
To start off, 2005 Porsche 911 is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1971 Pontiac Firebird would be higher. At 7,467 cc (8 cylinders), 1971 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 5700 RPM) has 110 more horse power than 1971 Pontiac Firebird. (335 HP @ 4800 RPM). In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1971 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 140 kg more than 1971 Pontiac Firebird. 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 1971 Pontiac Firebird. 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. 1971 Pontiac Firebird has automatic transmission and 2005 Porsche 911 has manual transmission. 2005 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Pontiac Firebird will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Porsche 911 | 1971 Pontiac Firebird | |
| Make | Porsche | Pontiac |
| Model | 911 | Firebird |
| Year Released | 2005 | 1971 |
| Body Type | Coupe | Coupe |
| Engine Position | Rear | Front |
| Engine Size | 3600 cc | 7467 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 445 HP | 335 HP |
| Engine RPM | 5700 RPM | 4800 RPM |
| Engine Bore Size | 100 mm | 104.9 mm |
| Engine Stroke Size | 76.4 mm | 108 mm |
| Engine Compression Ratio | 9.4:1 | 10.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 307 km/hour | 201 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1450 kg |
| Vehicle Length | 4440 mm | 4870 mm |
| Vehicle Width | 1840 mm | 1880 mm |
| Vehicle Height | 1300 mm | 1280 mm |
| Wheelbase Size | 2360 mm | 2750 mm |
