1999 Buick Riviera vs. 1992 Opel Calibra
To start off, 1999 Buick Riviera is newer by 7 year(s). Which means there will be less support and parts availability for 1992 Opel Calibra. In addition, the cost of maintenance, including insurance, on 1992 Opel Calibra would be higher. At 3,791 cc (6 cylinders), 1999 Buick Riviera is equipped with a bigger engine. In terms of performance, 1999 Buick Riviera (205 HP @ 5200 RPM) has 90 more horse power than 1992 Opel Calibra. (115 HP @ 5200 RPM). In normal driving conditions, 1999 Buick Riviera should accelerate faster than 1992 Opel Calibra. With that said, vehicle weight also plays an important factor in acceleration. 1999 Buick Riviera weights approximately 510 kg more than 1992 Opel Calibra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1999 Buick Riviera (312 Nm @ 4000 RPM) has 139 more torque (in Nm) than 1992 Opel Calibra. (173 Nm @ 2600 RPM). This means 1999 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1992 Opel Calibra.
Compare all specifications:
| 1999 Buick Riviera | 1992 Opel Calibra | |
| Make | Buick | Opel |
| Model | Riviera | Calibra |
| Year Released | 1999 | 1992 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 205 HP | 115 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 312 Nm | 173 Nm |
| Torque RPM | 4000 RPM | 2600 RPM |
| Engine Bore Size | 96.5 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 9.4:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1700 kg | 1190 kg |
| Vehicle Length | 5270 mm | 4500 mm |
| Vehicle Width | 1910 mm | 1700 mm |
| Vehicle Height | 1400 mm | 1610 mm |
