1981 Buick LeSabre vs. 1991 Mitsubishi Sigma
To start off, 1991 Mitsubishi Sigma is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Buick LeSabre. In addition, the cost of maintenance, including insurance, on 1981 Buick LeSabre would be higher. At 3,790 cc (6 cylinders), 1981 Buick LeSabre is equipped with a bigger engine. In terms of performance, 1991 Mitsubishi Sigma (176 HP @ 5500 RPM) has 72 more horse power than 1981 Buick LeSabre. (104 HP @ 3400 RPM) In normal driving conditions, 1991 Mitsubishi Sigma should accelerate faster than 1981 Buick LeSabre. With that said, vehicle weight also plays an important factor in acceleration. 1981 Buick LeSabre weights approximately 120 kg more than 1991 Mitsubishi Sigma.
Let's talk about torque, both vehicles can yield 251 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1981 Buick LeSabre | 1991 Mitsubishi Sigma | |
| Make | Buick | Mitsubishi |
| Model | LeSabre | Sigma |
| Year Released | 1981 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 3790 cc | 2972 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 104 HP | 176 HP |
| Engine RPM | 3400 RPM | 5500 RPM |
| Torque | 251 Nm | 251 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1590 kg | 1470 kg |
| Vehicle Length | 5550 mm | 4760 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2950 mm | 2730 mm |
