1986 Buick Regal vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 22 year(s). Which means there will be less support and parts availability for 1986 Buick Regal. In addition, the cost of maintenance, including insurance, on 1986 Buick Regal would be higher. At 3,791 cc (6 cylinders), 1986 Buick Regal is equipped with a bigger engine. In terms of performance, 1986 Buick Regal (235 HP @ 4400 RPM) has 27 more horse power than 2008 Opel Signum. (208 HP @ 6200 RPM). In normal driving conditions, 1986 Buick Regal should accelerate faster than 2008 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 120 kg more than 1986 Buick Regal.
Because 1986 Buick Regal 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 1986 Buick Regal. However, in wet, icy, snow, or gravel driving conditions, 2008 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, 1986 Buick Regal (448 Nm @ 2800 RPM) has 148 more torque (in Nm) than 2008 Opel Signum. (300 Nm @ 4000 RPM). This means 1986 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Signum.
Compare all specifications:
| 1986 Buick Regal | 2008 Opel Signum | |
| Make | Buick | Opel |
| Model | Regal | Signum |
| Year Released | 1986 | 2008 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 3175 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 235 HP | 208 HP |
| Engine RPM | 4400 RPM | 6200 RPM |
| Torque | 448 Nm | 300 Nm |
| Torque RPM | 2800 RPM | 4000 RPM |
| Engine Bore Size | 96.5 mm | 87.5 mm |
| Engine Stroke Size | 86.4 mm | 88 mm |
| Engine Compression Ratio | 8.0:1 | 10.0:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1490 kg | 1610 kg |
| Vehicle Length | 5100 mm | 4640 mm |
| Vehicle Width | 1830 mm | 1800 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2750 mm | 2840 mm |
| Fuel Tank Capacity | 68 L | 60 L |
