1984 Ford Sierra vs. 1968 Plymouth GTX
To start off, 1984 Ford Sierra is newer by 16 year(s). Which means there will be less support and parts availability for 1968 Plymouth GTX. In addition, the cost of maintenance, including insurance, on 1968 Plymouth GTX would be higher. At 7,206 cc (8 cylinders), 1968 Plymouth GTX is equipped with a bigger engine. In terms of performance, 1968 Plymouth GTX (375 HP @ 4600 RPM) has 215 more horse power than 1984 Ford Sierra. (160 HP @ 5700 RPM) In normal driving conditions, 1968 Plymouth GTX should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1968 Plymouth GTX weights approximately 417 kg more than 1984 Ford Sierra. 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, 1968 Plymouth GTX (651 Nm @ 3200 RPM) has 435 more torque (in Nm) than 1984 Ford Sierra. (216 Nm @ 4300 RPM). This means 1968 Plymouth GTX will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra. 1968 Plymouth GTX has automatic transmission and 1984 Ford Sierra has manual transmission. 1984 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1968 Plymouth GTX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1984 Ford Sierra | 1968 Plymouth GTX | |
| Make | Ford | Plymouth |
| Model | Sierra | GTX |
| Year Released | 1984 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 2792 cc | 7206 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 160 HP | 375 HP |
| Engine RPM | 5700 RPM | 4600 RPM |
| Torque | 216 Nm | 651 Nm |
| Torque RPM | 4300 RPM | 3200 RPM |
| Engine Bore Size | 93.1 mm | 109.7 mm |
| Engine Stroke Size | 68.5 mm | 95.3 mm |
| Engine Compression Ratio | 9.2:1 | 10.1:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1180 kg | 1597 kg |
| Vehicle Length | 4430 mm | 5160 mm |
| Vehicle Width | 1730 mm | 1950 mm |
| Vehicle Height | 1370 mm | 1340 mm |
| Wheelbase Size | 2610 mm | 2950 mm |
