1977 Buick LeSabre vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 30 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 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (312 HP @ 4400 RPM) has 149 more horse power than 1977 Buick LeSabre. (163 HP @ 4000 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1977 Buick LeSabre. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 805 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.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1977 Buick LeSabre. In wet, icy, snow, or gravel driving conditions, 2007 GMC Sierra will offer significantly more control. 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, 2007 GMC Sierra (506 Nm @ 4400 RPM) has 177 more torque (in Nm) than 1977 Buick LeSabre. (329 Nm @ 2800 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1977 Buick LeSabre.
Compare all specifications:
| 1977 Buick LeSabre | 2007 GMC Sierra | |
| Make | Buick | GMC |
| Model | LeSabre | Sierra |
| Year Released | 1977 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 163 HP | 312 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 329 Nm | 506 Nm |
| Torque RPM | 2800 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Vehicle Weight | 1630 kg | 2435 kg |
| Vehicle Length | 5550 mm | 6580 mm |
| Vehicle Width | 1910 mm | 2440 mm |
| Vehicle Height | 1430 mm | 1940 mm |
| Wheelbase Size | 2950 mm | 4250 mm |
