1998 BMW 728 vs. 1999 Opel Signum
To start off, 1999 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 1998 BMW 728. In addition, the cost of maintenance, including insurance, on 1998 BMW 728 would be higher. At 2,926 cc (6 cylinders), 1998 BMW 728 is equipped with a bigger engine. In terms of performance, 1998 BMW 728 (190 HP @ 5500 RPM) has 67 more horse power than 1999 Opel Signum. (123 HP @ 3250 RPM). In normal driving conditions, 1998 BMW 728 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1998 BMW 728 weights approximately 195 kg more than 1999 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1998 BMW 728 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 728. However, in wet, icy, snow, or gravel driving conditions, 1999 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 728 (280 Nm @ 3500 RPM) has 9 more torque (in Nm) than 1999 Opel Signum. (271 Nm @ 1500 RPM). This means 1998 BMW 728 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum.
Compare all specifications:
| 1998 BMW 728 | 1999 Opel Signum | |
| Make | BMW | Opel |
| Model | 728 | Signum |
| Year Released | 1998 | 1999 |
| 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 |
| Horse Power | 190 HP | 123 HP |
| Engine RPM | 5500 RPM | 3250 RPM |
| Torque | 280 Nm | 271 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Acceleration 0-100mph | 9.6 seconds | 11.2 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1805 kg | 1610 kg |
| Vehicle Length | 4990 mm | 4640 mm |
| Vehicle Width | 1870 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2940 mm | 2840 mm |
| Fuel Tank Capacity | 85 L | 61 L |
