2003 Infiniti Q45 vs. 1999 Pontiac Firebird
To start off, 2003 Infiniti Q45 is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1999 Pontiac Firebird would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2003 Infiniti Q45 (340 HP) has 140 more horse power than 1999 Pontiac Firebird. (200 HP). In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 1999 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti Q45 weights approximately 299 kg more than 1999 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 Q45 (451 Nm @ 4000 RPM) has 146 more torque (in Nm) than 1999 Pontiac Firebird. (305 Nm @ 4000 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 1999 Pontiac Firebird. 2003 Infiniti Q45 has automatic transmission and 1999 Pontiac Firebird has manual transmission. 1999 Pontiac Firebird will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Infiniti Q45 | 1999 Pontiac Firebird | |
| Make | Infiniti | Pontiac |
| Model | Q45 | Firebird |
| Year Released | 2003 | 1999 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 3785 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 340 HP | 200 HP |
| Torque | 451 Nm | 305 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1804 kg | 1505 kg |
| Vehicle Length | 5080 mm | 4920 mm |
| Vehicle Width | 1850 mm | 1900 mm |
| Vehicle Height | 1500 mm | 1310 mm |
| Wheelbase Size | 2880 mm | 2570 mm |
| Fuel Tank Capacity | 81 L | 58 L |
