1999 GMC Sierra vs. 1978 Opel Senator
To start off, 1999 GMC Sierra is newer by 21 year(s). Which means there will be less support and parts availability for 1978 Opel Senator. In addition, the cost of maintenance, including insurance, on 1978 Opel Senator 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 105 more horse power than 1978 Opel Senator. (177 HP @ 5800 RPM). In normal driving conditions, 1999 GMC Sierra should accelerate faster than 1978 Opel Senator. With that said, vehicle weight also plays an important factor in acceleration. 1999 GMC Sierra weights approximately 350 kg more than 1978 Opel Senator. 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 Opel Senator. 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 192 more torque (in Nm) than 1978 Opel Senator. (248 Nm @ 4200 RPM). This means 1999 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1978 Opel Senator.
Compare all specifications:
| 1999 GMC Sierra | 1978 Opel Senator | |
| Make | GMC | Opel |
| Model | Sierra | Senator |
| Year Released | 1999 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 5325 cc | 2969 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 282 HP | 177 HP |
| Engine RPM | 5200 RPM | 5800 RPM |
| Torque | 440 Nm | 248 Nm |
| Torque RPM | 4000 RPM | 4200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1835 kg | 1485 kg |
| Vehicle Length | 5170 mm | 4700 mm |
| Vehicle Width | 2000 mm | 1730 mm |
| Vehicle Height | 1810 mm | 1390 mm |
| Wheelbase Size | 3030 mm | 2670 mm |
