1951 Alvis TA 21 vs. 1971 Pontiac Firebird
To start off, 1971 Pontiac Firebird is newer by 20 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 would be higher. At 7,467 cc (8 cylinders), 1971 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1971 Pontiac Firebird (335 HP @ 4800 RPM) has 242 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1971 Pontiac Firebird should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1971 Pontiac Firebird weights approximately 2 kg more than 1951 Alvis TA 21. 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. 1971 Pontiac Firebird has automatic transmission and 1951 Alvis TA 21 has manual transmission. 1951 Alvis TA 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Pontiac Firebird will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Alvis TA 21 | 1971 Pontiac Firebird | |
| Make | Alvis | Pontiac |
| Model | TA 21 | Firebird |
| Year Released | 1951 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 7467 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 93 HP | 335 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Engine Bore Size | 84 mm | 104.9 mm |
| Engine Stroke Size | 90 mm | 108 mm |
| Engine Compression Ratio | 7.1:1 | 10.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1448 kg | 1450 kg |
| Vehicle Length | 4630 mm | 4870 mm |
| Vehicle Width | 1680 mm | 1880 mm |
| Vehicle Height | 1600 mm | 1280 mm |
| Wheelbase Size | 2840 mm | 2750 mm |
