1991 Buick Roadmaster vs. 1977 Buick LeSabre
To start off, 1991 Buick Roadmaster is newer by 14 year(s). Which means there will be less support and parts availability for 1977 Buick LeSabre. In addition, the cost of maintenance, including insurance, on 1977 Buick LeSabre would be higher. At 5,002 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 1991 Buick Roadmaster (168 HP @ 4200 RPM) has 63 more horse power than 1977 Buick LeSabre. (105 HP @ 3400 RPM). In normal driving conditions, 1991 Buick Roadmaster should accelerate faster than 1977 Buick LeSabre. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 410 kg more than 1977 Buick LeSabre. 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 (346 Nm @ 2400 RPM) has 95 more torque (in Nm) than 1977 Buick LeSabre. (251 Nm @ 2000 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 1977 Buick LeSabre.
Compare all specifications:
| 1991 Buick Roadmaster | 1977 Buick LeSabre | |
| Make | Buick | Buick |
| Model | Roadmaster | LeSabre |
| Year Released | 1991 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 5002 cc | 3791 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 168 HP | 105 HP |
| Engine RPM | 4200 RPM | 3400 RPM |
| Torque | 346 Nm | 251 Nm |
| Torque RPM | 2400 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 2000 kg | 1590 kg |
| Vehicle Length | 5540 mm | 5550 mm |
| Vehicle Width | 2040 mm | 1910 mm |
| Vehicle Height | 1540 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2950 mm |
