1984 Ford Sierra vs. 1971 Jensen SP
To start off, 1984 Ford Sierra is newer by 13 year(s). Which means there will be less support and parts availability for 1971 Jensen SP. In addition, the cost of maintenance, including insurance, on 1971 Jensen SP would be higher. At 7,206 cc (8 cylinders), 1971 Jensen SP is equipped with a bigger engine. In terms of performance, 1971 Jensen SP (385 HP @ 4700 RPM) has 319 more horse power than 1984 Ford Sierra. (66 HP @ 4200 RPM) In normal driving conditions, 1971 Jensen SP should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1971 Jensen SP weights approximately 548 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, 1971 Jensen SP (557 Nm @ 3600 RPM) has 417 more torque (in Nm) than 1984 Ford Sierra. (140 Nm @ 2000 RPM). This means 1971 Jensen SP will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra. 1971 Jensen SP 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. 1971 Jensen SP will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1984 Ford Sierra | 1971 Jensen SP | |
| Make | Ford | Jensen |
| Model | Sierra | SP |
| Year Released | 1984 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2304 cc | 7206 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 66 HP | 385 HP |
| Engine RPM | 4200 RPM | 4700 RPM |
| Torque | 140 Nm | 557 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Bore Size | 94 mm | 109.7 mm |
| Engine Stroke Size | 83 mm | 95.3 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1235 kg | 1783 kg |
| Vehicle Length | 4510 mm | 4780 mm |
| Vehicle Width | 1740 mm | 1760 mm |
| Vehicle Height | 1450 mm | 1370 mm |
| Wheelbase Size | 2620 mm | 2670 mm |
| Fuel Tank Capacity | 60 L | 75 L |
