2007 Infiniti QX56 vs. 1978 Pontiac Firebird
To start off, 2007 Infiniti QX56 is newer by 29 year(s). Which means there will be less support and parts availability for 1978 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1978 Pontiac Firebird would be higher. At 5,700 cc (8 cylinders), 1978 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 2007 Infiniti QX56 (320 HP @ 4900 RPM) has 162 more horse power than 1978 Pontiac Firebird. (158 HP @ 4400 RPM). In normal driving conditions, 2007 Infiniti QX56 should accelerate faster than 1978 Pontiac Firebird.
Because 2007 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2007 Infiniti QX56 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, 2007 Infiniti QX56 (533 Nm @ 3600 RPM) has 167 more torque (in Nm) than 1978 Pontiac Firebird. (366 Nm @ 2000 RPM). This means 2007 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 1978 Pontiac Firebird.
Compare all specifications:
| 2007 Infiniti QX56 | 1978 Pontiac Firebird | |
| Make | Infiniti | Pontiac |
| Model | QX56 | Firebird |
| Year Released | 2007 | 1978 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 5700 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 320 HP | 158 HP |
| Engine RPM | 4900 RPM | 4400 RPM |
| Torque | 533 Nm | 366 Nm |
| Torque RPM | 3600 RPM | 2000 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 7 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 5260 mm | 4880 mm |
| Vehicle Width | 2010 mm | 1870 mm |
| Vehicle Height | 1980 mm | 1290 mm |
| Wheelbase Size | 3140 mm | 2750 mm |
| Fuel Tank Capacity | 106 L | 76 L |
