1956 Armstrong Siddeley Sapphire vs. 1999 BMW Z8
To start off, 1999 BMW Z8 is newer by 43 year(s). Which means there will be less support and parts availability for 1956 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1956 Armstrong Siddeley Sapphire would be higher. At 4,939 cc (8 cylinders), 1999 BMW Z8 is equipped with a bigger engine. In terms of performance, 1999 BMW Z8 (400 HP @ 6600 RPM) has 315 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1999 BMW Z8 should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW Z8 weights approximately 225 kg more than 1956 Armstrong Siddeley Sapphire. 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, 1999 BMW Z8 (500 Nm @ 3800 RPM) has 340 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1999 BMW Z8 will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1999 BMW Z8 | |
| Make | Armstrong Siddeley | BMW |
| Model | Sapphire | Z8 |
| Year Released | 1956 | 1999 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 4939 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 400 HP |
| Engine RPM | 4400 RPM | 6600 RPM |
| Torque | 160 Nm | 500 Nm |
| Torque RPM | 1750 RPM | 3800 RPM |
| Engine Bore Size | 70 mm | 94 mm |
| Engine Stroke Size | 100 mm | 89 mm |
| Engine Compression Ratio | 7.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1585 kg |
| Vehicle Length | 4580 mm | 4410 mm |
| Vehicle Width | 1730 mm | 1840 mm |
| Vehicle Height | 1570 mm | 1320 mm |
| Wheelbase Size | 2900 mm | 2510 mm |
