1953 Alvis TA 21 vs. 1958 Armstrong Siddeley Star Sapphire
To start off, 1958 Armstrong Siddeley Star Sapphire is newer by 5 year(s). Which means there will be less support and parts availability for 1953 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1953 Alvis TA 21 would be higher. At 3,990 cc (6 cylinders), 1958 Armstrong Siddeley Star Sapphire is equipped with a bigger engine. In terms of performance, 1958 Armstrong Siddeley Star Sapphire (145 HP @ 4250 RPM) has 52 more horse power than 1953 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1958 Armstrong Siddeley Star Sapphire should accelerate faster than 1953 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1958 Armstrong Siddeley Star Sapphire weights approximately 330 kg more than 1953 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. Let's talk about torque, 1958 Armstrong Siddeley Star Sapphire (312 Nm @ 2000 RPM) has 112 more torque (in Nm) than 1953 Alvis TA 21. (200 Nm @ 2000 RPM). This means 1958 Armstrong Siddeley Star Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1953 Alvis TA 21. 1958 Armstrong Siddeley Star Sapphire has automatic transmission and 1953 Alvis TA 21 has manual transmission. 1953 Alvis TA 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1958 Armstrong Siddeley Star Sapphire will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1953 Alvis TA 21 | 1958 Armstrong Siddeley Star Sapphire | |
| Make | Alvis | Armstrong Siddeley |
| Model | TA 21 | Star Sapphire |
| Year Released | 1953 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3990 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 93 HP | 145 HP |
| Engine RPM | 4000 RPM | 4250 RPM |
| Torque | 200 Nm | 312 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 97.1 mm |
| Engine Stroke Size | 90 mm | 90 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1448 kg | 1778 kg |
| Vehicle Length | 4630 mm | 4940 mm |
| Vehicle Width | 1680 mm | 1890 mm |
| Vehicle Height | 1600 mm | 1580 mm |
| Wheelbase Size | 2840 mm | 2900 mm |
| Fuel Tank Capacity | 64 L | 72 L |
