1981 Pontiac Firebird vs. 1973 Triumph 1500
To start off, 1981 Pontiac Firebird is newer by 8 year(s). Which means there will be less support and parts availability for 1973 Triumph 1500. In addition, the cost of maintenance, including insurance, on 1973 Triumph 1500 would be higher. At 5,012 cc (8 cylinders), 1981 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1981 Pontiac Firebird (145 HP @ 3800 RPM) has 82 more horse power than 1973 Triumph 1500. (63 HP @ 5000 RPM). In normal driving conditions, 1981 Pontiac Firebird should accelerate faster than 1973 Triumph 1500. With that said, vehicle weight also plays an important factor in acceleration. 1981 Pontiac Firebird weights approximately 607 kg more than 1973 Triumph 1500. 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, 1981 Pontiac Firebird (324 Nm @ 2400 RPM) has 218 more torque (in Nm) than 1973 Triumph 1500. (106 Nm @ 3000 RPM). This means 1981 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1973 Triumph 1500.
Compare all specifications:
| 1981 Pontiac Firebird | 1973 Triumph 1500 | |
| Make | Pontiac | Triumph |
| Model | Firebird | 1500 |
| Year Released | 1981 | 1973 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5012 cc | 1492 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 145 HP | 63 HP |
| Engine RPM | 3800 RPM | 5000 RPM |
| Torque | 324 Nm | 106 Nm |
| Torque RPM | 2400 RPM | 3000 RPM |
| Engine Bore Size | 95 mm | 73.7 mm |
| Engine Stroke Size | 88.4 mm | 87.5 mm |
| Engine Compression Ratio | 8.6:1 | 9.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1542 kg | 935 kg |
| Vehicle Length | 5040 mm | 4120 mm |
| Vehicle Width | 1860 mm | 1570 mm |
| Vehicle Height | 1260 mm | 1380 mm |
| Wheelbase Size | 2750 mm | 2460 mm |
| Fuel Tank Capacity | 79 L | 63 L |
