1988 Buick Reatta vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 18 year(s). Which means there will be less support and parts availability for 1988 Buick Reatta. In addition, the cost of maintenance, including insurance, on 1988 Buick Reatta would be higher. At 3,791 cc (6 cylinders), 1988 Buick Reatta is equipped with a bigger engine. In terms of performance, 1988 Buick Reatta (165 HP @ 4800 RPM) has 12 more horse power than 2006 Opel Signum. (153 HP @ 5600 RPM). In normal driving conditions, 1988 Buick Reatta should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1988 Buick Reatta weights approximately 1 kg more than 2006 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 1988 Buick Reatta (285 Nm @ 2000 RPM) has 65 more torque (in Nm) than 2006 Opel Signum. (220 Nm @ 3800 RPM). This means 1988 Buick Reatta will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum.
Compare all specifications:
| 1988 Buick Reatta | 2006 Opel Signum | |
| Make | Buick | Opel |
| Model | Reatta | Signum |
| Year Released | 1988 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 165 HP | 153 HP |
| Engine RPM | 4800 RPM | 5600 RPM |
| Torque | 285 Nm | 220 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Engine Bore Size | 96.5 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 94.6 mm |
| Engine Compression Ratio | 8.5:1 | 12.0:1 |
| Top Speed | 201 km/hour | 211 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1536 kg | 1535 kg |
| Vehicle Length | 4670 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2840 mm |
| Fuel Tank Capacity | 69 L | 60 L |
