1955 Armstrong Siddeley Sapphire vs. 2003 Opel Vectra
To start off, 2003 Opel Vectra is newer by 48 year(s). Which means there will be less support and parts availability for 1955 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1955 Armstrong Siddeley Sapphire would be higher. At 2,309 cc (6 cylinders), 1955 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (120 HP @ 5400 RPM) has 35 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 2003 Opel Vectra should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 110 kg more than 1955 Armstrong Siddeley Sapphire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1955 Armstrong Siddeley Sapphire is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1955 Armstrong Siddeley Sapphire. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Vectra, being front wheel drive (FWD), will offer much better control with better grip. 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, 2003 Opel Vectra (167 Nm @ 3800 RPM) has 7 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire. 2003 Opel Vectra has automatic transmission and 1955 Armstrong Siddeley Sapphire has manual transmission. 1955 Armstrong Siddeley Sapphire will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 2003 Opel Vectra | |
| Make | Armstrong Siddeley | Opel |
| Model | Sapphire | Vectra |
| Year Released | 1955 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 1794 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 120 HP |
| Engine RPM | 4400 RPM | 5400 RPM |
| Torque | 160 Nm | 167 Nm |
| Torque RPM | 1750 RPM | 3800 RPM |
| Engine Bore Size | 70 mm | 80.5 mm |
| Engine Stroke Size | 100 mm | 88.2 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1360 kg | 1470 kg |
| Vehicle Length | 4580 mm | 4830 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1570 mm | 1510 mm |
