1991 Buick Roadmaster vs. 1970 Opel Admiral
To start off, 1991 Buick Roadmaster is newer by 21 year(s). Which means there will be less support and parts availability for 1970 Opel Admiral. In addition, the cost of maintenance, including insurance, on 1970 Opel Admiral would be higher. At 5,731 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 1991 Buick Roadmaster (177 HP @ 4200 RPM) has 34 more horse power than 1970 Opel Admiral. (143 HP @ 5200 RPM). In normal driving conditions, 1991 Buick Roadmaster should accelerate faster than 1970 Opel Admiral. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 365 kg more than 1970 Opel Admiral. 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, 1991 Buick Roadmaster (393 Nm @ 2400 RPM) has 166 more torque (in Nm) than 1970 Opel Admiral. (227 Nm @ 3600 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 1970 Opel Admiral. 1991 Buick Roadmaster has automatic transmission and 1970 Opel Admiral has manual transmission. 1970 Opel Admiral will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Buick Roadmaster will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Buick Roadmaster | 1970 Opel Admiral | |
| Make | Buick | Opel |
| Model | Roadmaster | Admiral |
| Year Released | 1991 | 1970 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5731 cc | 2784 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 177 HP | 143 HP |
| Engine RPM | 4200 RPM | 5200 RPM |
| Torque | 393 Nm | 227 Nm |
| Torque RPM | 2400 RPM | 3600 RPM |
| Engine Compression Ratio | 8.0:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1475 kg |
| Vehicle Length | 5280 mm | 4910 mm |
| Vehicle Width | 2040 mm | 1860 mm |
| Vehicle Height | 1650 mm | 1460 mm |
| Wheelbase Size | 2950 mm | 2850 mm |
| Fuel Tank Capacity | 75 L | 80 L |
