2007 GMC Sierra vs. 1975 Pontiac Firebird
To start off, 2007 GMC Sierra is newer by 32 year(s). Which means there will be less support and parts availability for 1975 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1975 Pontiac Firebird would be higher. At 4,294 cc (6 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (195 HP @ 4600 RPM) has 87 more horse power than 1975 Pontiac Firebird. (108 HP @ 3600 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1975 Pontiac Firebird.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1975 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 2007 GMC Sierra 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 GMC Sierra (354 Nm @ 2800 RPM) has 117 more torque (in Nm) than 1975 Pontiac Firebird. (237 Nm @ 1600 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1975 Pontiac Firebird.
Compare all specifications:
| 2007 GMC Sierra | 1975 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 2007 | 1975 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4294 cc | 4093 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 195 HP | 108 HP |
| Engine RPM | 4600 RPM | 3600 RPM |
| Torque | 354 Nm | 237 Nm |
| Torque RPM | 2800 RPM | 1600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 3 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 5790 mm | 4880 mm |
| Vehicle Width | 2000 mm | 1870 mm |
| Vehicle Height | 1850 mm | 1290 mm |
| Wheelbase Size | 3650 mm | 2750 mm |
