1978 Buick Regal vs. 1986 Ford Sierra
To start off, 1986 Ford Sierra is newer by 8 year(s). Which means there will be less support and parts availability for 1978 Buick Regal. In addition, the cost of maintenance, including insurance, on 1978 Buick Regal would be higher. At 3,214 cc (6 cylinders), 1978 Buick Regal is equipped with a bigger engine. In terms of performance, 1986 Ford Sierra (160 HP @ 5700 RPM) has 56 more horse power than 1978 Buick Regal. (104 HP @ 4000 RPM) In normal driving conditions, 1986 Ford Sierra should accelerate faster than 1978 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 1978 Buick Regal weights approximately 164 kg more than 1986 Ford Sierra.
Because 1986 Ford Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1978 Buick Regal. In wet, icy, snow, or gravel driving conditions, 1986 Ford Sierra 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, 1978 Buick Regal (218 Nm @ 2000 RPM) has 2 more torque (in Nm) than 1986 Ford Sierra. (216 Nm @ 4300 RPM). This means 1978 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 1986 Ford Sierra.
Compare all specifications:
| 1978 Buick Regal | 1986 Ford Sierra | |
| Make | Buick | Ford |
| Model | Regal | Sierra |
| Year Released | 1978 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 3214 cc | 2792 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 104 HP | 160 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 218 Nm | 216 Nm |
| Torque RPM | 2000 RPM | 4300 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1430 kg | 1266 kg |
| Vehicle Length | 5090 mm | 4430 mm |
| Vehicle Width | 1840 mm | 1730 mm |
| Wheelbase Size | 2750 mm | 2610 mm |
