1958 Armstrong Siddeley Star Sapphire vs. 1978 BMW 725
To start off, 1978 BMW 725 is newer by 20 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 3,990 cc (6 cylinders), 1958 Armstrong Siddeley Star Sapphire is equipped with a bigger engine. In terms of performance, 1978 BMW 725 (148 HP @ 5500 RPM) has 3 more horse power than 1958 Armstrong Siddeley Star Sapphire. (145 HP @ 4250 RPM) In normal driving conditions, 1978 BMW 725 should accelerate faster than 1958 Armstrong Siddeley Star Sapphire.
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 97 more torque (in Nm) than 1978 BMW 725. (215 Nm @ 4000 RPM). This means 1958 Armstrong Siddeley Star Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
1958 Armstrong Siddeley Star Sapphire | 1978 BMW 725 | |
Make | Armstrong Siddeley | BMW |
Model | Star Sapphire | 725 |
Year Released | 1958 | 1978 |
Engine Position | Front | Front |
Engine Size | 3990 cc | 2495 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Horse Power | 145 HP | 148 HP |
Engine RPM | 4250 RPM | 5500 RPM |
Torque | 312 Nm | 215 Nm |
Torque RPM | 2000 RPM | 4000 RPM |
Engine Bore Size | 97.1 mm | 86.1 mm |
Engine Stroke Size | 90 mm | 71.6 mm |
Engine Compression Ratio | 7.5:1 | 9.6:1 |
Drive Type | Rear | Rear |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Length | 4940 mm | 4870 mm |
Vehicle Width | 1890 mm | 1810 mm |
Vehicle Height | 1580 mm | 1440 mm |
Wheelbase Size | 2900 mm | 2810 mm |