1981 Pontiac Firebird vs. 1991 Porsche 911
To start off, 1991 Porsche 911 is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1981 Pontiac Firebird would be higher. At 4,942 cc (8 cylinders), 1981 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1991 Porsche 911 (228 HP @ 5900 RPM) has 28 more horse power than 1981 Pontiac Firebird. (200 HP @ 4000 RPM) In normal driving conditions, 1991 Porsche 911 should accelerate faster than 1981 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 1981 Pontiac Firebird weights approximately 441 kg more than 1991 Porsche 911.
Let's talk about torque, 1981 Pontiac Firebird (459 Nm @ 2000 RPM) has 173 more torque (in Nm) than 1991 Porsche 911. (286 Nm @ 4800 RPM). This means 1981 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 911.
Compare all specifications:
| 1981 Pontiac Firebird | 1991 Porsche 911 | |
| Make | Pontiac | Porsche |
| Model | Firebird | 911 |
| Year Released | 1981 | 1991 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 4942 cc | 3163 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 200 HP | 228 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 459 Nm | 286 Nm |
| Torque RPM | 2000 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1616 kg | 1175 kg |
| Vehicle Length | 5040 mm | 4300 mm |
| Vehicle Width | 1860 mm | 1660 mm |
| Vehicle Height | 1260 mm | 1260 mm |
