1956 Armstrong Siddeley Sapphire vs. 1999 Seat Formula
To start off, 1999 Seat Formula 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 2,307 cc (6 cylinders), 1956 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1999 Seat Formula (238 HP @ 5800 RPM) has 153 more horse power than 1956 Armstrong Siddeley Sapphire. (85 HP @ 4400 RPM) In normal driving conditions, 1999 Seat Formula 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 460 kg more than 1999 Seat Formula.
Because 1999 Seat Formula is four wheel drive (4WD), it will have significant more traction and grip than 1956 Armstrong Siddeley Sapphire. In wet, icy, snow, or gravel driving conditions, 1999 Seat Formula will offer significantly more control. 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 Seat Formula (301 Nm @ 2100 RPM) has 141 more torque (in Nm) than 1956 Armstrong Siddeley Sapphire. (160 Nm @ 1750 RPM). This means 1999 Seat Formula 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 Seat Formula | |
| Make | Armstrong Siddeley | Seat |
| Model | Sapphire | Formula |
| Year Released | 1956 | 1999 |
| Engine Position | Front | Middle |
| Engine Size | 2307 cc | 1982 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 85 HP | 238 HP |
| Engine RPM | 4400 RPM | 5800 RPM |
| Torque | 160 Nm | 301 Nm |
| Torque RPM | 1750 RPM | 2100 RPM |
| Engine Bore Size | 70 mm | 82.5 mm |
| Engine Stroke Size | 100 mm | 92.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1360 kg | 900 kg |
| Vehicle Length | 4580 mm | 3950 mm |
| Vehicle Width | 1730 mm | 1760 mm |
| Vehicle Height | 1570 mm | 1160 mm |
| Wheelbase Size | 2900 mm | 2520 mm |
