1951 Alvis TA 21 vs. 1977 Mazda RX-4
To start off, 1977 Mazda RX-4 is newer by 26 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 2,993 cc (6 cylinders), 1951 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 1977 Mazda RX-4 (114 HP @ 6000 RPM) has 21 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1977 Mazda RX-4 should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1951 Alvis TA 21 weights approximately 338 kg more than 1977 Mazda RX-4.
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, 1951 Alvis TA 21 (204 Nm @ 2000 RPM) has 39 more torque (in Nm) than 1977 Mazda RX-4. (165 Nm @ 4000 RPM). This means 1951 Alvis TA 21 will have an easier job in driving up hills or pulling heavy equipment than 1977 Mazda RX-4.
Compare all specifications:
| 1951 Alvis TA 21 | 1977 Mazda RX-4 | |
| Make | Alvis | Mazda |
| Model | TA 21 | RX-4 |
| Year Released | 1951 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2616 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 93 HP | 114 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 165 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1448 kg | 1110 kg |
| Vehicle Length | 4630 mm | 4400 mm |
| Vehicle Width | 1680 mm | 1670 mm |
| Vehicle Height | 1600 mm | 1390 mm |
| Wheelbase Size | 2840 mm | 2520 mm |
