1986 Buick Regal vs. 1984 Ford Sierra
To start off, 1986 Buick Regal is newer by 2 year(s). Which means there will be less support and parts availability for 1984 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1984 Ford Sierra would be higher. At 3,791 cc (6 cylinders), 1986 Buick Regal is equipped with a bigger engine. In terms of performance, 1986 Buick Regal (235 HP @ 4400 RPM) has 160 more horse power than 1984 Ford Sierra. (75 HP @ 4800 RPM). In normal driving conditions, 1986 Buick Regal should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1986 Buick Regal weights approximately 450 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, 1986 Buick Regal (448 Nm @ 2800 RPM) has 325 more torque (in Nm) than 1984 Ford Sierra. (123 Nm @ 2900 RPM). This means 1986 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra. 1986 Buick Regal 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. 1986 Buick Regal will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1986 Buick Regal | 1984 Ford Sierra | |
| Make | Buick | Ford |
| Model | Regal | Sierra |
| Year Released | 1986 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 1593 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 235 HP | 75 HP |
| Engine RPM | 4400 RPM | 4800 RPM |
| Torque | 448 Nm | 123 Nm |
| Torque RPM | 2800 RPM | 2900 RPM |
| Engine Bore Size | 96.5 mm | 87.7 mm |
| Engine Stroke Size | 86.4 mm | 66 mm |
| Engine Compression Ratio | 8.0:1 | 9.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1490 kg | 1040 kg |
| Vehicle Length | 5100 mm | 4430 mm |
| Vehicle Width | 1830 mm | 1730 mm |
| Vehicle Height | 1390 mm | 1370 mm |
| Wheelbase Size | 2750 mm | 2610 mm |
| Fuel Tank Capacity | 68 L | 60 L |
