1974 Humber Sceptre vs. 1976 Pontiac Firebird
To start off, 1976 Pontiac Firebird is newer by 2 year(s). Which means there will be less support and parts availability for 1974 Humber Sceptre. In addition, the cost of maintenance, including insurance, on 1974 Humber Sceptre would be higher. At 6,547 cc (8 cylinders), 1976 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1976 Pontiac Firebird (285 HP @ 4400 RPM) has 206 more horse power than 1974 Humber Sceptre. (79 HP @ 5200 RPM) In normal driving conditions, 1976 Pontiac Firebird should accelerate faster than 1974 Humber Sceptre. With that said, vehicle weight also plays an important factor in acceleration. 1976 Pontiac Firebird weights approximately 604 kg more than 1974 Humber Sceptre. 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, 1976 Pontiac Firebird (421 Nm @ 2400 RPM) has 298 more torque (in Nm) than 1974 Humber Sceptre. (123 Nm @ 3600 RPM). This means 1976 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1974 Humber Sceptre.
Compare all specifications:
| 1974 Humber Sceptre | 1976 Pontiac Firebird | |
| Make | Humber | Pontiac |
| Model | Sceptre | Firebird |
| Year Released | 1974 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 1725 cc | 6547 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 79 HP | 285 HP |
| Engine RPM | 5200 RPM | 4400 RPM |
| Torque | 123 Nm | 421 Nm |
| Torque RPM | 3600 RPM | 2400 RPM |
| Engine Bore Size | 81.5 mm | 104.7 mm |
| Engine Stroke Size | 82.6 mm | 95.3 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 992 kg | 1596 kg |
| Vehicle Length | 4310 mm | 4880 mm |
| Vehicle Width | 1620 mm | 1870 mm |
| Vehicle Height | 1430 mm | 1290 mm |
| Wheelbase Size | 2510 mm | 2750 mm |
| Fuel Tank Capacity | 45 L | 76 L |
