1998 BMW 729 vs. 2001 Opel Signum
To start off, 2001 Opel Signum is newer by 3 year(s). Which means there will be less support and parts availability for 1998 BMW 729. In addition, the cost of maintenance, including insurance, on 1998 BMW 729 would be higher. At 2,926 cc (6 cylinders), 1998 BMW 729 is equipped with a bigger engine. In terms of performance, 1998 BMW 729 (181 HP @ 4000 RPM) has 56 more horse power than 2001 Opel Signum. (125 HP @ 3250 RPM). In normal driving conditions, 1998 BMW 729 should accelerate faster than 2001 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1998 BMW 729 weights approximately 220 kg more than 2001 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1998 BMW 729 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 1998 BMW 729. However, in wet, icy, snow, or gravel driving conditions, 2001 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, 1998 BMW 729 (410 Nm @ 2000 RPM) has 130 more torque (in Nm) than 2001 Opel Signum. (280 Nm @ 1500 RPM). This means 1998 BMW 729 will have an easier job in driving up hills or pulling heavy equipment than 2001 Opel Signum.
Compare all specifications:
| 1998 BMW 729 | 2001 Opel Signum | |
| Make | BMW | Opel |
| Model | 729 | Signum |
| Year Released | 1998 | 2001 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2926 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 181 HP | 125 HP |
| Engine RPM | 4000 RPM | 3250 RPM |
| Torque | 410 Nm | 280 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Compression Ratio | 18.0:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1830 kg | 1610 kg |
| Vehicle Length | 5130 mm | 4640 mm |
| Vehicle Width | 1870 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2940 mm | 2840 mm |
