1987 Buick Regal vs. 2004 Opel Signum
To start off, 2004 Opel Signum is newer by 17 year(s). Which means there will be less support and parts availability for 1987 Buick Regal. In addition, the cost of maintenance, including insurance, on 1987 Buick Regal would be higher. At 3,791 cc (6 cylinders), 1987 Buick Regal is equipped with a bigger engine. In terms of performance, 1987 Buick Regal (276 HP @ 4400 RPM) has 103 more horse power than 2004 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 1987 Buick Regal should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1987 Buick Regal weights approximately 16 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1987 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 1987 Buick Regal. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 1987 Buick Regal (489 Nm @ 3000 RPM) has 224 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 1987 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 1987 Buick Regal has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1987 Buick Regal will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1987 Buick Regal | 2004 Opel Signum | |
| Make | Buick | Opel |
| Model | Regal | Signum |
| Year Released | 1987 | 2004 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 276 HP | 173 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 489 Nm | 265 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 96.5 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Top Speed | 200 km/hour | 220 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1576 kg | 1560 kg |
| Vehicle Length | 5100 mm | 4640 mm |
| Vehicle Width | 1920 mm | 1800 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2750 mm | 2840 mm |
| Fuel Tank Capacity | 68 L | 60 L |
