1958 Morris Isis vs. 1976 Pontiac Firebird
To start off, 1976 Pontiac Firebird is newer by 18 year(s). Which means there will be less support and parts availability for 1958 Morris Isis. In addition, the cost of maintenance, including insurance, on 1958 Morris Isis would be higher. At 7,467 cc (8 cylinders), 1976 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1976 Pontiac Firebird (335 HP @ 4800 RPM) has 250 more horse power than 1958 Morris Isis. (85 HP @ 4250 RPM) In normal driving conditions, 1976 Pontiac Firebird should accelerate faster than 1958 Morris Isis. With that said, vehicle weight also plays an important factor in acceleration. 1976 Pontiac Firebird weights approximately 135 kg more than 1958 Morris Isis. 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. 1976 Pontiac Firebird has automatic transmission and 1958 Morris Isis has manual transmission. 1958 Morris Isis will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1976 Pontiac Firebird will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1958 Morris Isis | 1976 Pontiac Firebird | |
| Make | Morris | Pontiac |
| Model | Isis | Firebird |
| Year Released | 1958 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 2639 cc | 7467 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 85 HP | 335 HP |
| Engine RPM | 4250 RPM | 4800 RPM |
| Engine Bore Size | 79.4 mm | 104.9 mm |
| Engine Stroke Size | 88.9 mm | 108 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1315 kg | 1450 kg |
| Vehicle Length | 4530 mm | 4870 mm |
| Vehicle Width | 1660 mm | 1880 mm |
| Vehicle Height | 1620 mm | 1280 mm |
| Wheelbase Size | 2470 mm | 2750 mm |
