1955 Armstrong Siddeley Sapphire vs. 1969 Mercury Montego
To start off, 1969 Mercury Montego is newer by 14 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 4,945 cc (8 cylinders), 1969 Mercury Montego is equipped with a bigger engine. In terms of performance, 1969 Mercury Montego (142 HP @ 4000 RPM) has 57 more horse power than 1955 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1969 Mercury Montego should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1969 Mercury Montego weights approximately 415 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.
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, 1969 Mercury Montego (335 Nm @ 2000 RPM) has 175 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1969 Mercury Montego will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 1969 Mercury Montego | |
| Make | Armstrong Siddeley | Mercury |
| Model | Sapphire | Montego |
| Year Released | 1955 | 1969 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 4945 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 142 HP |
| Engine RPM | 4400 RPM | 4000 RPM |
| Torque | 160 Nm | 335 Nm |
| Torque RPM | 1750 RPM | 2000 RPM |
| Engine Bore Size | 70 mm | 101.6 mm |
| Engine Stroke Size | 100 mm | 76.2 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 6 seats |
| Vehicle Weight | 1360 kg | 1775 kg |
| Vehicle Length | 4580 mm | 5300 mm |
| Vehicle Width | 1730 mm | 2010 mm |
| Vehicle Height | 1570 mm | 1350 mm |
| Wheelbase Size | 2900 mm | 3010 mm |
