2005 Mazda MX-5 Miata vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Mazda MX-5 Miata. In addition, the cost of maintenance, including insurance, on 2005 Mazda MX-5 Miata would be higher. At 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 37 more horse power than 2005 Mazda MX-5 Miata. (138 HP @ 4000 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 2005 Mazda MX-5 Miata. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 585 kg more than 2005 Mazda MX-5 Miata. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Mazda MX-5 Miata 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 2005 Mazda MX-5 Miata. However, in wet, icy, snow, or gravel driving conditions, 2006 Opel Signum, 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, 2006 Opel Signum (370 Nm) has 200 more torque (in Nm) than 2005 Mazda MX-5 Miata. (170 Nm). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Mazda MX-5 Miata.
Compare all specifications:
| 2005 Mazda MX-5 Miata | 2006 Opel Signum | |
| Make | Mazda | Opel |
| Model | MX-5 Miata | Signum |
| Year Released | 2005 | 2006 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1835 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 175 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 170 Nm | 370 Nm |
| Engine Compression Ratio | 10.0:1 | 18.5:1 |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1085 kg | 1670 kg |
| Vehicle Length | 3950 mm | 4640 mm |
| Vehicle Width | 1690 mm | 1800 mm |
| Vehicle Height | 1230 mm | 1470 mm |
| Wheelbase Size | 2270 mm | 2840 mm |
| Fuel Consumption Overall | 9.4 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 48 L | 60 L |
