1948 Allard J1 vs. 1973 Pontiac Firebird
To start off, 1973 Pontiac Firebird is newer by 25 year(s). Which means there will be less support and parts availability for 1948 Allard J1. In addition, the cost of maintenance, including insurance, on 1948 Allard J1 would be higher. At 6,547 cc (8 cylinders), 1973 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1973 Pontiac Firebird (285 HP @ 4400 RPM) has 200 more horse power than 1948 Allard J1. (85 HP @ 3800 RPM) In normal driving conditions, 1973 Pontiac Firebird should accelerate faster than 1948 Allard J1. With that said, vehicle weight also plays an important factor in acceleration. 1973 Pontiac Firebird weights approximately 576 kg more than 1948 Allard J1. 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, 1973 Pontiac Firebird (421 Nm @ 2400 RPM) has 217 more torque (in Nm) than 1948 Allard J1. (204 Nm @ 1500 RPM). This means 1973 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1948 Allard J1.
Compare all specifications:
| 1948 Allard J1 | 1973 Pontiac Firebird | |
| Make | Allard | Pontiac |
| Model | J1 | Firebird |
| Year Released | 1948 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 3622 cc | 6547 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 285 HP |
| Engine RPM | 3800 RPM | 4400 RPM |
| Torque | 204 Nm | 421 Nm |
| Torque RPM | 1500 RPM | 2400 RPM |
| Engine Bore Size | 77.8 mm | 104.7 mm |
| Engine Stroke Size | 95.3 mm | 95.3 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 4 seats |
| Vehicle Weight | 1020 kg | 1596 kg |
| Vehicle Length | 3690 mm | 4880 mm |
| Vehicle Width | 1480 mm | 1870 mm |
| Vehicle Height | 1510 mm | 1290 mm |
| Wheelbase Size | 2440 mm | 2750 mm |
