1955 Armstrong Siddeley Sapphire vs. 2007 Pontiac Grand Prix
To start off, 2007 Pontiac Grand Prix is newer by 52 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 3,786 cc (6 cylinders), 2007 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2007 Pontiac Grand Prix (200 HP) has 75 more horse power than 1955 Armstrong Siddeley Sapphire. (125 HP) In normal driving conditions, 2007 Pontiac Grand Prix 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 474 kg more than 2007 Pontiac Grand Prix.
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, 2007 Pontiac Grand Prix (312 Nm @ 4000 RPM) has 65 more torque (in Nm) than 1955 Armstrong Siddeley Sapphire. (247 Nm @ 2000 RPM). This means 2007 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 1955 Armstrong Siddeley Sapphire. 2007 Pontiac Grand Prix 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. 2007 Pontiac Grand Prix will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 2007 Pontiac Grand Prix | |
| Make | Armstrong Siddeley | Pontiac |
| Model | Sapphire | Grand Prix |
| Year Released | 1955 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3435 cc | 3786 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 200 HP |
| Torque | 247 Nm | 312 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 90 mm | 97 mm |
| Engine Stroke Size | 90 mm | 86 mm |
| Engine Compression Ratio | 7.0:1 | 9.4:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1356 kg |
| Vehicle Length | 5390 mm | 5040 mm |
| Vehicle Width | 1840 mm | 1830 mm |
| Vehicle Height | 1680 mm | 1430 mm |
| Wheelbase Size | 3380 mm | 2810 mm |
| Fuel Tank Capacity | 72 L | 64 L |
