1963 Buick Riviera vs. 1991 Oldsmobile Achieva
To start off, 1991 Oldsmobile Achieva is newer by 28 year(s). Which means there will be less support and parts availability for 1963 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1963 Buick Riviera would be higher. At 6,571 cc (8 cylinders), 1963 Buick Riviera is equipped with a bigger engine. In terms of performance, 1963 Buick Riviera (321 HP @ 4400 RPM) has 171 more horse power than 1991 Oldsmobile Achieva. (150 HP @ 4800 RPM). In normal driving conditions, 1963 Buick Riviera should accelerate faster than 1991 Oldsmobile Achieva. With that said, vehicle weight also plays an important factor in acceleration. 1963 Buick Riviera weights approximately 550 kg more than 1991 Oldsmobile Achieva. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1963 Buick Riviera 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 1963 Buick Riviera. However, in wet, icy, snow, or gravel driving conditions, 1991 Oldsmobile Achieva, 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, 1963 Buick Riviera (603 Nm @ 2800 RPM) has 354 more torque (in Nm) than 1991 Oldsmobile Achieva. (249 Nm @ 3200 RPM). This means 1963 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1991 Oldsmobile Achieva.
Compare all specifications:
| 1963 Buick Riviera | 1991 Oldsmobile Achieva | |
| Make | Buick | Oldsmobile |
| Model | Riviera | Achieva |
| Year Released | 1963 | 1991 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 6571 cc | 3133 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 321 HP | 150 HP |
| Engine RPM | 4400 RPM | 4800 RPM |
| Torque | 603 Nm | 249 Nm |
| Torque RPM | 2800 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1860 kg | 1310 kg |
| Vehicle Length | 5290 mm | 4780 mm |
| Vehicle Width | 1950 mm | 1750 mm |
