1999 Buick Riviera vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1999 Buick Riviera would be higher. At 3,791 cc (6 cylinders), 1999 Buick Riviera is equipped with a bigger engine. In terms of performance, 2005 Opel Vectra (208 HP @ 6200 RPM) has 3 more horse power than 1999 Buick Riviera. (205 HP @ 5200 RPM) In normal driving conditions, 2005 Opel Vectra should accelerate faster than 1999 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1999 Buick Riviera weights approximately 500 kg more than 2005 Opel Vectra.
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, 1999 Buick Riviera (312 Nm @ 4000 RPM) has 12 more torque (in Nm) than 2005 Opel Vectra. (300 Nm @ 4000 RPM). This means 1999 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra.
Compare all specifications:
| 1999 Buick Riviera | 2005 Opel Vectra | |
| Make | Buick | Opel |
| Model | Riviera | Vectra |
| Year Released | 1999 | 2005 |
| 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 | 205 HP | 208 HP |
| Engine RPM | 5200 RPM | 6200 RPM |
| Torque | 312 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 96.5 mm | 87.5 mm |
| Engine Stroke Size | 86.4 mm | 88 mm |
| Engine Compression Ratio | 9.4:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1700 kg | 1200 kg |
| Vehicle Length | 5270 mm | 4600 mm |
| Vehicle Width | 1910 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
