2005 Opel Signum vs. 1999 Mercedes-Benz SL
To start off, 2005 Opel Signum is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 1999 Mercedes-Benz SL would be higher. At 2,799 cc (6 cylinders), 1999 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 1999 Mercedes-Benz SL (190 HP @ 5500 RPM) has 91 more horse power than 2005 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 1999 Mercedes-Benz SL should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz SL weights approximately 165 kg more than 2005 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Mercedes-Benz SL 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 1999 Mercedes-Benz SL. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 1999 Mercedes-Benz SL (271 Nm @ 3750 RPM) has 41 more torque (in Nm) than 2005 Opel Signum. (230 Nm @ 1500 RPM). This means 1999 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum. 1999 Mercedes-Benz SL has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Opel Signum | 1999 Mercedes-Benz SL | |
| Make | Opel | Mercedes-Benz |
| Model | Signum | SL |
| Year Released | 2005 | 1999 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 2799 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 99 HP | 190 HP |
| Engine RPM | 3120 RPM | 5500 RPM |
| Torque | 230 Nm | 271 Nm |
| Torque RPM | 1500 RPM | 3750 RPM |
| Engine Bore Size | 84 mm | 89.9 mm |
| Engine Stroke Size | 90 mm | 73.5 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1595 kg | 1760 kg |
| Vehicle Length | 4640 mm | 4470 mm |
| Vehicle Width | 1800 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2740 mm | 2520 mm |
| Fuel Tank Capacity | 60 L | 80 L |
