2007 Mercury Mariner vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Mercury Mariner. In addition, the cost of maintenance, including insurance, on 2007 Mercury Mariner would be higher. At 2,957 cc (6 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (175 HP @ 4000 RPM) has 42 more horse power than 2007 Mercury Mariner. (133 HP @ 6000 RPM) In normal driving conditions, 2008 Opel Signum should accelerate faster than 2007 Mercury Mariner. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercury Mariner weights approximately 255 kg more than 2008 Opel Signum.
Because 2007 Mercury Mariner is four wheel drive (4WD), it will have significant more traction and grip than 2008 Opel Signum. 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, 2008 Opel Signum (370 Nm @ 1900 RPM) has 202 more torque (in Nm) than 2007 Mercury Mariner. (168 Nm @ 4250 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercury Mariner. 2007 Mercury Mariner has automatic transmission and 2008 Opel Signum has manual transmission. 2008 Opel Signum 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:
| 2007 Mercury Mariner | 2008 Opel Signum | |
| Make | Mercury | Opel |
| Model | Mariner | Signum |
| Year Released | 2007 | 2008 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2299 cc | 2957 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 133 HP | 175 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 168 Nm | 370 Nm |
| Torque RPM | 4250 RPM | 1900 RPM |
| Engine Bore Size | 87.5 mm | 87.5 mm |
| Engine Stroke Size | 94 mm | 82 mm |
| Engine Compression Ratio | 12.4:1 | 18.5:1 |
| Fuel Type | Gasoline / Electric Hybrid | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1925 kg | 1670 kg |
| Vehicle Length | 4430 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1790 mm | 1470 mm |
| Wheelbase Size | 2630 mm | 2840 mm |
| Fuel Consumption Overall | 7.6 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 57 L | 60 L |
