1991 Buick Riviera vs. 2001 Toyota Opa
To start off, 2001 Toyota Opa is newer by 10 year(s). Which means there will be less support and parts availability for 1991 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1991 Buick Riviera would be higher. At 3,800 cc (6 cylinders), 1991 Buick Riviera is equipped with a bigger engine. In terms of performance, 1991 Buick Riviera (170 HP @ 4800 RPM) has 20 more horse power than 2001 Toyota Opa. (150 HP @ 5300 RPM). In normal driving conditions, 1991 Buick Riviera should accelerate faster than 2001 Toyota Opa. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Riviera weights approximately 290 kg more than 2001 Toyota Opa. 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, 1991 Buick Riviera (285 Nm) has 83 more torque (in Nm) than 2001 Toyota Opa. (202 Nm). This means 1991 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2001 Toyota Opa.
Compare all specifications:
| 1991 Buick Riviera | 2001 Toyota Opa | |
| Make | Buick | Toyota |
| Model | Riviera | Opa |
| Year Released | 1991 | 2001 |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 2000 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 170 HP | 150 HP |
| Engine RPM | 4800 RPM | 5300 RPM |
| Torque | 285 Nm | 202 Nm |
| Engine Bore Size | 96.5 mm | 86.1 mm |
| Engine Stroke Size | 86.4 mm | 86.1 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1520 kg | 1230 kg |
| Vehicle Length | 5040 mm | 4260 mm |
| Vehicle Width | 1830 mm | 1700 mm |
| Vehicle Height | 1350 mm | 1530 mm |
| Wheelbase Size | 2760 mm | 2800 mm |
