1968 Buick Riviera vs. 1966 Holden HD
To start off, 1968 Buick Riviera is newer by 2 year(s). Which means there will be less support and parts availability for 1966 Holden HD. In addition, the cost of maintenance, including insurance, on 1966 Holden HD would be higher. At 7,050 cc (8 cylinders), 1968 Buick Riviera is equipped with a bigger engine. In terms of performance, 1968 Buick Riviera (305 HP @ 5000 RPM) has 183 more horse power than 1966 Holden HD. (122 HP @ 4600 RPM). In normal driving conditions, 1968 Buick Riviera should accelerate faster than 1966 Holden HD. With that said, vehicle weight also plays an important factor in acceleration. 1968 Buick Riviera weights approximately 700 kg more than 1966 Holden HD. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1968 Buick Riviera (645 Nm @ 3200 RPM) has 408 more torque (in Nm) than 1966 Holden HD. (237 Nm @ 2200 RPM). This means 1968 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 1966 Holden HD.
Compare all specifications:
| 1968 Buick Riviera | 1966 Holden HD | |
| Make | Buick | Holden |
| Model | Riviera | HD |
| Year Released | 1968 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 7050 cc | 2930 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 305 HP | 122 HP |
| Engine RPM | 5000 RPM | 4600 RPM |
| Torque | 645 Nm | 237 Nm |
| Torque RPM | 3200 RPM | 2200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1900 kg | 1200 kg |
| Vehicle Length | 5370 mm | 4580 mm |
| Vehicle Width | 2020 mm | 1790 mm |
| Vehicle Height | 1370 mm | 1510 mm |
| Wheelbase Size | 3030 mm | 2700 mm |
