1975 Pontiac Firebird vs. 2011 GMC Sierra
To start off, 2011 GMC Sierra is newer by 36 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 4,800 cc (8 cylinders), 2011 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 GMC Sierra (302 HP @ 5600 RPM) has 194 more horse power than 1975 Pontiac Firebird. (108 HP @ 3600 RPM) In normal driving conditions, 2011 GMC Sierra should accelerate faster than 1975 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 2011 GMC Sierra weights approximately 841 kg more than 1975 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, 2011 GMC Sierra (413 Nm @ 4600 RPM) has 176 more torque (in Nm) than 1975 Pontiac Firebird. (237 Nm @ 1600 RPM). This means 2011 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1975 Pontiac Firebird.
Compare all specifications:
| 1975 Pontiac Firebird | 2011 GMC Sierra | |
| Make | Pontiac | GMC |
| Model | Firebird | Sierra |
| Year Released | 1975 | 2011 |
| Body Type | Coupe | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4093 cc | 4800 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 108 HP | 302 HP |
| Engine RPM | 3600 RPM | 5600 RPM |
| Torque | 237 Nm | 413 Nm |
| Torque RPM | 1600 RPM | 4600 RPM |
| Fuel Type | Gasoline | Flex Fuel |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1470 kg | 2311 kg |
| Vehicle Length | 4880 mm | 5847 mm |
| Vehicle Width | 1870 mm | 2032 mm |
| Vehicle Height | 1290 mm | 1875 mm |
| Wheelbase Size | 2750 mm | 3645 mm |
