2002 GMC Sierra vs. 1999 Opel Omega
To start off, 2002 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 1999 Opel Omega. In addition, the cost of maintenance, including insurance, on 1999 Opel Omega would be higher. At 5,967 cc (8 cylinders), 2002 GMC Sierra is equipped with a bigger engine. In terms of performance, 2002 GMC Sierra (321 HP @ 5000 RPM) has 153 more horse power than 1999 Opel Omega. (168 HP @ 6000 RPM). In normal driving conditions, 2002 GMC Sierra should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2002 GMC Sierra weights approximately 560 kg more than 1999 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1999 Opel Omega. In wet, icy, snow, or gravel driving conditions, 2002 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, 2002 GMC Sierra (371 Nm @ 4000 RPM) has 144 more torque (in Nm) than 1999 Opel Omega. (227 Nm @ 3200 RPM). This means 2002 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega. 2002 GMC Sierra has automatic transmission and 1999 Opel Omega has manual transmission. 1999 Opel Omega will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2002 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2002 GMC Sierra | 1999 Opel Omega | |
| Make | GMC | Opel |
| Model | Sierra | Omega |
| Year Released | 2002 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 5967 cc | 2498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 168 HP |
| Engine RPM | 5000 RPM | 6000 RPM |
| Torque | 371 Nm | 227 Nm |
| Torque RPM | 4000 RPM | 3200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Vehicle Weight | 2270 kg | 1710 kg |
| Vehicle Length | 5790 mm | 4900 mm |
| Vehicle Width | 2000 mm | 1790 mm |
| Vehicle Height | 1850 mm | 1510 mm |
| Wheelbase Size | 3650 mm | 2740 mm |
