1999 GMC Sierra vs. 1970 Pontiac Firebird
To start off, 1999 GMC Sierra is newer by 29 year(s). Which means there will be less support and parts availability for 1970 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1970 Pontiac Firebird would be higher. At 5,792 cc (8 cylinders), 1970 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1999 GMC Sierra (282 HP @ 5200 RPM) has 124 more horse power than 1970 Pontiac Firebird. (158 HP @ 4400 RPM). In normal driving conditions, 1999 GMC Sierra should accelerate faster than 1970 Pontiac Firebird. With that said, vehicle weight also plays an important factor in acceleration. 1999 GMC Sierra weights approximately 250 kg more than 1970 Pontiac Firebird. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1970 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 GMC Sierra (440 Nm @ 4000 RPM) has 74 more torque (in Nm) than 1970 Pontiac Firebird. (366 Nm @ 2000 RPM). This means 1999 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1970 Pontiac Firebird.
Compare all specifications:
| 1999 GMC Sierra | 1970 Pontiac Firebird | |
| Make | GMC | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 1999 | 1970 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5325 cc | 5792 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 282 HP | 158 HP |
| Engine RPM | 5200 RPM | 4400 RPM |
| Torque | 440 Nm | 366 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Vehicle Weight | 1835 kg | 1585 kg |
| Vehicle Length | 5170 mm | 4880 mm |
| Vehicle Width | 2000 mm | 1870 mm |
| Vehicle Height | 1810 mm | 1290 mm |
| Wheelbase Size | 3030 mm | 2750 mm |
