1987 Ford Sierra vs. 1970 Pontiac Firebird
To start off, 1987 Ford Sierra is newer by 17 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, 1970 Pontiac Firebird (158 HP @ 4400 RPM) has 84 more horse power than 1987 Ford Sierra. (74 HP @ 4900 RPM) In normal driving conditions, 1970 Pontiac Firebird should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1970 Pontiac Firebird weights approximately 565 kg more than 1987 Ford Sierra. 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, 1970 Pontiac Firebird (366 Nm @ 2000 RPM) has 243 more torque (in Nm) than 1987 Ford Sierra. (123 Nm @ 2900 RPM). This means 1970 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 1970 Pontiac Firebird | |
| Make | Ford | Pontiac |
| Model | Sierra | Firebird |
| Year Released | 1987 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 5792 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 74 HP | 158 HP |
| Engine RPM | 4900 RPM | 4400 RPM |
| Torque | 123 Nm | 366 Nm |
| Torque RPM | 2900 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1020 kg | 1585 kg |
| Vehicle Length | 4430 mm | 4880 mm |
| Vehicle Width | 1700 mm | 1870 mm |
| Vehicle Height | 1370 mm | 1290 mm |
| Wheelbase Size | 2620 mm | 2750 mm |
