1978 BMW 725 vs. 2007 Opel Signum
To start off, 2007 Opel Signum is newer by 29 year(s). Which means there will be less support and parts availability for 1978 BMW 725. In addition, the cost of maintenance, including insurance, on 1978 BMW 725 would be higher. At 2,495 cc (6 cylinders), 1978 BMW 725 is equipped with a bigger engine. In terms of performance, 1978 BMW 725 (148 HP @ 5500 RPM) has 28 more horse power than 2007 Opel Signum. (120 HP @ 6000 RPM). In normal driving conditions, 1978 BMW 725 should accelerate faster than 2007 Opel Signum.
Because 1978 BMW 725 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 1978 BMW 725. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 1978 BMW 725 (215 Nm @ 4000 RPM) has 48 more torque (in Nm) than 2007 Opel Signum. (167 Nm @ 3800 RPM). This means 1978 BMW 725 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Signum.
Compare all specifications:
1978 BMW 725 | 2007 Opel Signum | |
Make | BMW | Opel |
Model | 725 | Signum |
Year Released | 1978 | 2007 |
Body Type | Sedan | Hatchback |
Engine Position | Front | Front |
Engine Size | 2495 cc | 1796 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 2 valves | 4 valves |
Horse Power | 148 HP | 120 HP |
Engine RPM | 5500 RPM | 6000 RPM |
Torque | 215 Nm | 167 Nm |
Torque RPM | 4000 RPM | 3800 RPM |
Engine Bore Size | 86.1 mm | 80.6 mm |
Engine Stroke Size | 71.6 mm | 88.2 mm |
Engine Compression Ratio | 9.6:1 | 10.5:1 |
Fuel Type | Gasoline | Gasoline - Premium |
Drive Type | Rear | Front |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Length | 4870 mm | 4640 mm |
Vehicle Width | 1810 mm | 1800 mm |
Vehicle Height | 1440 mm | 1470 mm |
Wheelbase Size | 2810 mm | 2840 mm |