1991 Buick LeSabre vs. 1987 Ford Sierra
To start off, 1991 Buick LeSabre is newer by 4 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 3,791 cc (6 cylinders), 1991 Buick LeSabre is equipped with a bigger engine. In terms of performance, 1991 Buick LeSabre (168 HP @ 4800 RPM) has 55 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM). In normal driving conditions, 1991 Buick LeSabre should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick LeSabre weights approximately 460 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Buick LeSabre (299 Nm @ 3200 RPM) has 119 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 1991 Buick LeSabre will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1991 Buick LeSabre | 1987 Ford Sierra | |
| Make | Buick | Ford |
| Model | LeSabre | Sierra |
| Year Released | 1991 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2294 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 113 HP |
| Engine RPM | 4800 RPM | 5300 RPM |
| Torque | 299 Nm | 180 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Engine Bore Size | 96.5 mm | 96 mm |
| Engine Stroke Size | 86.4 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1550 kg | 1090 kg |
| Vehicle Length | 5090 mm | 4400 mm |
| Vehicle Width | 1910 mm | 1680 mm |
| Vehicle Height | 1420 mm | 1370 mm |
| Wheelbase Size | 2820 mm | 2620 mm |
| Fuel Tank Capacity | 62 L | 45 L |
