2003 Infiniti FX vs. 1991 Pontiac Firebird
To start off, 2003 Infiniti FX is newer by 12 year(s). Which means there will be less support and parts availability for 1991 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1991 Pontiac Firebird would be higher. At 3,497 cc (6 cylinders), 2003 Infiniti FX is equipped with a bigger engine. In terms of performance, 2003 Infiniti FX (276 HP @ 6200 RPM) has 136 more horse power than 1991 Pontiac Firebird. (140 HP @ 4400 RPM). In normal driving conditions, 2003 Infiniti FX should accelerate faster than 1991 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti FX weights approximately 430 kg more than 1991 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2003 Infiniti FX (366 Nm @ 4800 RPM) has 122 more torque (in Nm) than 1991 Pontiac Firebird. (244 Nm @ 3600 RPM). This means 2003 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 1991 Pontiac Firebird. 2003 Infiniti FX has automatic transmission and 1991 Pontiac Firebird has manual transmission. 1991 Pontiac Firebird will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Infiniti FX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Infiniti FX | 1991 Pontiac Firebird | |
| Make | Infiniti | Pontiac |
| Model | FX | Firebird |
| Year Released | 2003 | 1991 |
| Body Type | Crossover | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3497 cc | 3128 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 276 HP | 140 HP |
| Engine RPM | 6200 RPM | 4400 RPM |
| Torque | 366 Nm | 244 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1840 kg | 1410 kg |
| Vehicle Length | 4810 mm | 4790 mm |
| Vehicle Width | 1930 mm | 1850 mm |
| Vehicle Height | 1660 mm | 1280 mm |
| Wheelbase Size | 2860 mm | 2570 mm |
