1958 Armstrong Siddeley Star Sapphire vs. 2008 Cadillac XLR
To start off, 2008 Cadillac XLR is newer by 50 year(s). Which means there will be less support and parts availability for 1958 Armstrong Siddeley Star Sapphire. In addition, the cost of maintenance, including insurance, on 1958 Armstrong Siddeley Star Sapphire would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2008 Cadillac XLR (320 HP @ 6400 RPM) has 175 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 2008 Cadillac XLR 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 218 kg more than 2008 Cadillac XLR.
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, 2008 Cadillac XLR (420 Nm @ 4400 RPM) has 108 more torque (in Nm) than 1958 Armstrong Siddeley Star Sapphire. (312 Nm @ 2000 RPM). This means 2008 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 1958 Armstrong Siddeley Star Sapphire.
Compare all specifications:
| 1958 Armstrong Siddeley Star Sapphire | 2008 Cadillac XLR | |
| Make | Armstrong Siddeley | Cadillac |
| Model | Star Sapphire | XLR |
| Year Released | 1958 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 3990 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 320 HP |
| Engine RPM | 4250 RPM | 6400 RPM |
| Torque | 312 Nm | 420 Nm |
| Torque RPM | 2000 RPM | 4400 RPM |
| Engine Bore Size | 97.1 mm | 93 mm |
| Engine Stroke Size | 90 mm | 84 mm |
| Engine Compression Ratio | 7.5:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1778 kg | 1560 kg |
| Vehicle Length | 4940 mm | 4520 mm |
| Vehicle Width | 1890 mm | 1840 mm |
| Vehicle Height | 1580 mm | 1290 mm |
| Wheelbase Size | 2900 mm | 2690 mm |
| Fuel Tank Capacity | 72 L | 68 L |
