2008 BMW 318 vs. 2003 Opel Signum
To start off, 2008 BMW 318 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 1,998 cc (4 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 BMW 318 (141 HP @ 6000 RPM) has 42 more horse power than 2003 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2008 BMW 318 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 225 kg more than 2008 BMW 318.
Because 2008 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 2008 BMW 318. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2003 Opel Signum (230 Nm @ 1500 RPM) has 30 more torque (in Nm) than 2008 BMW 318. (200 Nm @ 3750 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 318. 2008 BMW 318 has automatic transmission and 2003 Opel Signum has manual transmission. 2003 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW 318 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW 318 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | 318 | Signum |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 99 HP |
| Engine RPM | 6000 RPM | 3120 RPM |
| Torque | 200 Nm | 230 Nm |
| Torque RPM | 3750 RPM | 1500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 90 mm |
| Engine Compression Ratio | 10.2:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 218 km/hour | 185 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 14.3 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1620 kg |
| Vehicle Length | 4870 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2840 mm |
| Fuel Consumption Overall | 7.2 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
