1955 Armstrong Siddeley Sapphire vs. 1975 Avanti Avanti
To start off, 1975 Avanti Avanti is newer by 20 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 6,570 cc (8 cylinders), 1975 Avanti Avanti is equipped with a bigger engine. In terms of performance, 1975 Avanti Avanti (177 HP @ 3400 RPM) has 59 more horse power than 1955 Armstrong Siddeley Sapphire. (118 HP @ 5000 RPM) In normal driving conditions, 1975 Avanti Avanti should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1955 Armstrong Siddeley Sapphire weights approximately 70 kg more than 1975 Avanti Avanti.
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, 1975 Avanti Avanti (443 Nm @ 2000 RPM) has 254 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (189 Nm @ 3500 RPM). This means 1975 Avanti Avanti will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire. 1975 Avanti Avanti 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. 1975 Avanti Avanti will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 1975 Avanti Avanti | |
| Make | Armstrong Siddeley | Avanti |
| Model | Sapphire | Avanti |
| Year Released | 1955 | 1975 |
| Engine Size | 2290 cc | 6570 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 118 HP | 177 HP |
| Engine RPM | 5000 RPM | 3400 RPM |
| Torque | 189 Nm | 443 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1650 kg | 1580 kg |
| Vehicle Length | 4580 mm | 4910 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1570 mm | 1380 mm |
| Wheelbase Size | 2900 mm | 2780 mm |
