2004 Opel Signum vs. 2010 BMW 123
To start off, 2010 BMW 123 is newer by 6 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 1,995 cc (4 cylinders), 2010 BMW 123 is equipped with a bigger engine. In terms of performance, 2010 BMW 123 (202 HP @ 4400 RPM) has 54 more horse power than 2004 Opel Signum. (148 HP @ 4000 RPM) In normal driving conditions, 2010 BMW 123 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 115 kg more than 2010 BMW 123.
Because 2010 BMW 123 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 2010 BMW 123. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2010 BMW 123 (400 Nm @ 2000 RPM) has 74 more torque (in Nm) than 2004 Opel Signum. (326 Nm @ 2000 RPM). This means 2010 BMW 123 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2004 Opel Signum | 2010 BMW 123 | |
| Make | Opel | BMW |
| Model | Signum | 123 |
| Year Released | 2004 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 1908 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 202 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 326 Nm | 400 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 10.5 seconds | 7 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1495 kg |
| Vehicle Length | 4640 mm | 4360 mm |
| Vehicle Width | 1800 mm | 1748 mm |
| Vehicle Height | 1470 mm | 1423 mm |
| Wheelbase Size | 2840 mm | 2660 mm |
| Fuel Consumption Highway | 5.1 L/100km | 4.3 L/100km |
| Fuel Consumption City | 7.8 L/100km | 6.4 L/100km |
| Fuel Consumption Overall | 6.1 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 60 L | 51 L |
