1987 Ford Sierra vs. 2005 Pontiac Grand Prix
To start off, 2005 Pontiac Grand Prix is newer by 18 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 3,786 cc (6 cylinders), 2005 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2005 Pontiac Grand Prix (260 HP @ 5200 RPM) has 156 more horse power than 1987 Ford Sierra. (104 HP @ 5200 RPM) In normal driving conditions, 2005 Pontiac Grand Prix should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Grand Prix weights approximately 475 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1987 Ford Sierra is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1987 Ford Sierra. However, in wet, icy, snow, or gravel driving conditions, 2005 Pontiac Grand Prix, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Pontiac Grand Prix (380 Nm) has 220 more torque (in Nm) than 1987 Ford Sierra. (160 Nm). This means 2005 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 2005 Pontiac Grand Prix | |
| Make | Ford | Pontiac |
| Model | Sierra | Grand Prix |
| Year Released | 1987 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 3786 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 104 HP | 260 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 160 Nm | 380 Nm |
| Engine Bore Size | 90.9 mm | 97.1 mm |
| Engine Stroke Size | 77 mm | 86 mm |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1145 kg | 1620 kg |
| Vehicle Length | 4430 mm | 5040 mm |
| Vehicle Width | 1700 mm | 1830 mm |
| Vehicle Height | 1370 mm | 1420 mm |
| Wheelbase Size | 2620 mm | 2810 mm |
