1999 GMC Sierra vs. 2003 GMC Sierra
To start off, 2003 GMC Sierra is newer by 4 year(s). Which means there will be less support and parts availability for 1999 GMC Sierra. In addition, the cost of maintenance, including insurance, on 1999 GMC Sierra would be higher. At 5,967 cc (8 cylinders), 2003 GMC Sierra is equipped with a bigger engine. In terms of performance, 2003 GMC Sierra (321 HP @ 5000 RPM) has 124 more horse power than 1999 GMC Sierra. (197 HP @ 4600 RPM) In normal driving conditions, 2003 GMC Sierra should accelerate faster than 1999 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 GMC Sierra weights approximately 495 kg more than 1999 GMC Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2003 GMC Sierra (370 Nm @ 4000 RPM) has 18 more torque (in Nm) than 1999 GMC Sierra. (352 Nm @ 2800 RPM). This means 2003 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 GMC Sierra. 2003 GMC Sierra 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. 2003 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 GMC Sierra | 2003 GMC Sierra | |
| Make | GMC | GMC |
| Model | Sierra | Sierra |
| Year Released | 1999 | 2003 |
| Body Type | Pickup | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 5967 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 197 HP | 321 HP |
| Engine RPM | 4600 RPM | 5000 RPM |
| Torque | 352 Nm | 370 Nm |
| Torque RPM | 2800 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1775 kg | 2270 kg |
| Vehicle Length | 5170 mm | 5790 mm |
| Vehicle Width | 2000 mm | 2000 mm |
| Vehicle Height | 1810 mm | 1850 mm |
| Wheelbase Size | 3030 mm | 3650 mm |
