1999 GMC Sierra vs. 1978 Seat 127
To start off, 1999 GMC Sierra is newer by 21 year(s). Which means there will be less support and parts availability for 1978 Seat 127. In addition, the cost of maintenance, including insurance, on 1978 Seat 127 would be higher. At 5,325 cc (8 cylinders), 1999 GMC Sierra is equipped with a bigger engine. In terms of performance, 1999 GMC Sierra (282 HP @ 5200 RPM) has 231 more horse power than 1978 Seat 127. (51 HP @ 5800 RPM). In normal driving conditions, 1999 GMC Sierra should accelerate faster than 1978 Seat 127. With that said, vehicle weight also plays an important factor in acceleration. 1999 GMC Sierra weights approximately 1115 kg more than 1978 Seat 127. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1978 Seat 127. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 GMC Sierra (440 Nm @ 4000 RPM) has 364 more torque (in Nm) than 1978 Seat 127. (76 Nm @ 3100 RPM). This means 1999 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 Seat 127.
Compare all specifications:
| 1999 GMC Sierra | 1978 Seat 127 | |
| Make | GMC | Seat |
| Model | Sierra | 127 |
| Year Released | 1999 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 5325 cc | 1010 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 282 HP | 51 HP |
| Engine RPM | 5200 RPM | 5800 RPM |
| Torque | 440 Nm | 76 Nm |
| Torque RPM | 4000 RPM | 3100 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Vehicle Weight | 1835 kg | 720 kg |
| Vehicle Length | 5170 mm | 3600 mm |
| Vehicle Width | 2000 mm | 1530 mm |
| Vehicle Height | 1810 mm | 1380 mm |
| Wheelbase Size | 3030 mm | 2230 mm |
