2007 GMC Sierra vs. 1999 Alfa Romeo 156
To start off, 2007 GMC Sierra is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 1999 Alfa Romeo 156 would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (312 HP @ 4400 RPM) has 125 more horse power than 1999 Alfa Romeo 156. (187 HP @ 6300 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1999 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1470 kg more than 1999 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1999 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 GMC Sierra (506 Nm @ 4400 RPM) has 284 more torque (in Nm) than 1999 Alfa Romeo 156. (222 Nm @ 5000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 Alfa Romeo 156.
Compare all specifications:
| 2007 GMC Sierra | 1999 Alfa Romeo 156 | |
| Make | GMC | Alfa Romeo |
| Model | Sierra | 156 |
| Year Released | 2007 | 1999 |
| Body Type | Pickup | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 2491 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 312 HP | 187 HP |
| Engine RPM | 4400 RPM | 6300 RPM |
| Torque | 506 Nm | 222 Nm |
| Torque RPM | 4400 RPM | 5000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2790 kg | 1320 kg |
| Vehicle Length | 6340 mm | 4440 mm |
| Vehicle Width | 2440 mm | 1750 mm |
| Vehicle Height | 1940 mm | 1420 mm |
| Wheelbase Size | 4010 mm | 2600 mm |
| Fuel Tank Capacity | 129 L | 63 L |
