1987 Ford Sierra vs. 2007 Mercury Mariner
To start off, 2007 Mercury Mariner is newer by 20 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 2,303 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 2007 Mercury Mariner (133 HP @ 6000 RPM) has 67 more horse power than 1987 Ford Sierra. (66 HP @ 4200 RPM) In normal driving conditions, 2007 Mercury Mariner should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercury Mariner weights approximately 720 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 2007 Mercury Mariner is four wheel drive (4WD), it will have significant more traction and grip than 1987 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 2007 Mercury Mariner 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, 2007 Mercury Mariner (168 Nm @ 4250 RPM) has 26 more torque (in Nm) than 1987 Ford Sierra. (142 Nm @ 2000 RPM). This means 2007 Mercury Mariner will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra. 2007 Mercury Mariner has automatic transmission and 1987 Ford Sierra has manual transmission. 1987 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercury Mariner will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1987 Ford Sierra | 2007 Mercury Mariner | |
| Make | Ford | Mercury |
| Model | Sierra | Mariner |
| Year Released | 1987 | 2007 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 2303 cc | 2299 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 66 HP | 133 HP |
| Engine RPM | 4200 RPM | 6000 RPM |
| Torque | 142 Nm | 168 Nm |
| Torque RPM | 2000 RPM | 4250 RPM |
| Fuel Type | Diesel | Gasoline / Electric Hybrid |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1205 kg | 1925 kg |
| Vehicle Length | 4500 mm | 4430 mm |
| Vehicle Width | 1680 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1790 mm |
| Wheelbase Size | 2620 mm | 2630 mm |
