1991 Buick Roadmaster vs. 1978 Buick Regal
To start off, 1991 Buick Roadmaster is newer by 13 year(s). Which means there will be less support and parts availability for 1978 Buick Regal. In addition, the cost of maintenance, including insurance, on 1978 Buick Regal 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 73 more horse power than 1978 Buick Regal. (104 HP @ 4000 RPM). In normal driving conditions, 1991 Buick Roadmaster should accelerate faster than 1978 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 410 kg more than 1978 Buick Regal. 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 175 more torque (in Nm) than 1978 Buick Regal. (218 Nm @ 2000 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 1978 Buick Regal.
Compare all specifications:
| 1991 Buick Roadmaster | 1978 Buick Regal | |
| Make | Buick | Buick |
| Model | Roadmaster | Regal |
| Year Released | 1991 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 5731 cc | 3214 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 177 HP | 104 HP |
| Engine RPM | 4200 RPM | 4000 RPM |
| Torque | 393 Nm | 218 Nm |
| Torque RPM | 2400 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1840 kg | 1430 kg |
| Vehicle Length | 5280 mm | 5090 mm |
| Vehicle Width | 2040 mm | 1840 mm |
| Vehicle Height | 1650 mm | 1370 mm |
| Wheelbase Size | 2950 mm | 2750 mm |
