1999 GMC Sierra vs. 1988 Pontiac Grand Prix
To start off, 1999 GMC Sierra is newer by 11 year(s). Which means there will be less support and parts availability for 1988 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 1988 Pontiac Grand Prix would be higher. At 4,293 cc (6 cylinders), 1999 GMC Sierra is equipped with a bigger engine. In terms of performance, 1988 Pontiac Grand Prix (205 HP @ 4800 RPM) has 8 more horse power than 1999 GMC Sierra. (197 HP @ 4600 RPM) In normal driving conditions, 1988 Pontiac Grand Prix should accelerate faster than 1999 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1999 GMC Sierra weights approximately 210 kg more than 1988 Pontiac Grand Prix.
Because 1999 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1988 Pontiac Grand Prix. 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 (352 Nm @ 2800 RPM) has 54 more torque (in Nm) than 1988 Pontiac Grand Prix. (298 Nm @ 3200 RPM). This means 1999 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1988 Pontiac Grand Prix. 1988 Pontiac Grand Prix has automatic transmission and 1999 GMC Sierra has manual transmission. 1999 GMC Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1988 Pontiac Grand Prix will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 GMC Sierra | 1988 Pontiac Grand Prix | |
| Make | GMC | Pontiac |
| Model | Sierra | Grand Prix |
| Year Released | 1999 | 1988 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 3097 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 197 HP | 205 HP |
| Engine RPM | 4600 RPM | 4800 RPM |
| Torque | 352 Nm | 298 Nm |
| Torque RPM | 2800 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1775 kg | 1565 kg |
| Vehicle Length | 5170 mm | 4930 mm |
| Vehicle Width | 2000 mm | 1810 mm |
| Vehicle Height | 1810 mm | 1360 mm |
| Wheelbase Size | 3030 mm | 2740 mm |
