1956 Armstrong Siddeley Sapphire vs. 1977 Opel Monza
To start off, 1977 Opel Monza is newer by 21 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 2,307 cc (6 cylinders), 1956 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1977 Opel Monza (115 HP @ 5600 RPM) has 30 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1977 Opel Monza should accelerate faster than 1956 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1956 Armstrong Siddeley Sapphire weights approximately 575 kg more than 1977 Opel Monza.
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, 1977 Opel Monza (161 Nm @ 4200 RPM) has 1 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1977 Opel Monza will have an easier job in driving up hills or pulling heavy equipment than 1956 Armstrong Siddeley Sapphire. 1977 Opel Monza has automatic transmission and 1956 Armstrong Siddeley Sapphire has manual transmission. 1956 Armstrong Siddeley Sapphire will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1977 Opel Monza will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1977 Opel Monza | |
| Make | Armstrong Siddeley | Opel |
| Model | Sapphire | Monza |
| Year Released | 1956 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 1979 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 115 HP |
| Engine RPM | 4400 RPM | 5600 RPM |
| Torque | 160 Nm | 161 Nm |
| Torque RPM | 1750 RPM | 4200 RPM |
| Engine Bore Size | 70 mm | 95 mm |
| Engine Stroke Size | 100 mm | 69.8 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 785 kg |
| Vehicle Length | 4580 mm | 4730 mm |
| Vehicle Width | 1730 mm | 1730 mm |
| Vehicle Height | 1570 mm | 1350 mm |
| Wheelbase Size | 2900 mm | 2670 mm |
