2006 Opel Signum vs. 2007 BMW 318
To start off, 2007 BMW 318 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Opel Signum. In addition, the cost of maintenance, including insurance, on 2006 Opel Signum would be higher. At 1,994 cc (4 cylinders), 2007 BMW 318 is equipped with a bigger engine. In terms of performance, 2007 BMW 318 (148 HP @ 6200 RPM) has 30 more horse power than 2006 Opel Signum. (118 HP @ 4000 RPM) In normal driving conditions, 2007 BMW 318 should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 35 kg more than 2007 BMW 318.
Because 2007 BMW 318 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 2007 BMW 318. 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 (281 Nm @ 2000 RPM) has 81 more torque (in Nm) than 2007 BMW 318. (200 Nm @ 3600 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 318. 2007 BMW 318 has automatic transmission and 2006 Opel Signum has manual transmission. 2006 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 318 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Opel Signum | 2007 BMW 318 | |
| Make | Opel | BMW |
| Model | Signum | 318 |
| Year Released | 2006 | 2007 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 118 HP | 148 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 281 Nm | 200 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Bore Size | 82 mm | 84 mm |
| Engine Stroke Size | 90.4 mm | 90 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 191 km/hour | 207 km/hour |
| Acceleration 0-100mph | 12.2 seconds | 10.3 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1615 kg | 1580 kg |
| Vehicle Length | 4640 mm | 4490 mm |
| Vehicle Width | 1800 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1380 mm |
| Wheelbase Size | 2840 mm | 2730 mm |
| Fuel Consumption Overall | 6 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 60 L | 63 L |
