1952 Allard J2R vs. 1958 Armstrong Siddeley Star Sapphire
To start off, 1958 Armstrong Siddeley Star Sapphire is newer by 6 year(s). Which means there will be less support and parts availability for 1952 Allard J2R. In addition, the cost of maintenance, including insurance, on 1952 Allard J2R would be higher. At 5,415 cc (8 cylinders), 1952 Allard J2R is equipped with a bigger engine. In terms of performance, 1952 Allard J2R (251 HP) has 106 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP). In normal driving conditions, 1952 Allard J2R should accelerate faster than 1958 Armstrong Siddeley Star Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1958 Armstrong Siddeley Star Sapphire weights approximately 780 kg more than 1952 Allard J2R.
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, 1952 Allard J2R (508 Nm @ 2800 RPM) has 196 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 1952 Allard J2R will have an easier job in driving up hills or pulling heavy equipment than 1958 Armstrong Siddeley Star Sapphire.
Compare all specifications:
| 1952 Allard J2R | 1958 Armstrong Siddeley Star Sapphire | |
| Make | Allard | Armstrong Siddeley |
| Model | J2R | Star Sapphire |
| Year Released | 1952 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 5415 cc | 3990 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 251 HP | 145 HP |
| Torque | 508 Nm | 312 Nm |
| Torque RPM | 2800 RPM | 2000 RPM |
| Engine Bore Size | 96.8 mm | 97.1 mm |
| Engine Stroke Size | 92 mm | 90 mm |
| Engine Compression Ratio | 10.0:1 | 7.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 998 kg | 1778 kg |
| Vehicle Length | 3820 mm | 4940 mm |
| Vehicle Width | 1510 mm | 1890 mm |
| Vehicle Height | 880 mm | 1580 mm |
| Wheelbase Size | 2440 mm | 2900 mm |
| Fuel Tank Capacity | 38 L | 72 L |
