1999 Alfa Romeo 156 vs. 2012 GMC Sierra
To start off, 2012 GMC Sierra is newer by 13 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 6,000 cc (8 cylinders), 2012 GMC Sierra is equipped with a bigger engine. In terms of performance, 2012 GMC Sierra (364 HP @ 5400 RPM) has 177 more horse power than 1999 Alfa Romeo 156. (187 HP @ 6300 RPM) In normal driving conditions, 2012 GMC Sierra should accelerate faster than 1999 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2012 GMC Sierra weights approximately 1309 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 2012 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, 2012 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, 2012 GMC Sierra (506 Nm @ 4400 RPM) has 284 more torque (in Nm) than 1999 Alfa Romeo 156. (222 Nm @ 5000 RPM). This means 2012 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 Alfa Romeo 156.
Compare all specifications:
| 1999 Alfa Romeo 156 | 2012 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 156 | Sierra |
| Year Released | 1999 | 2012 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 6000 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 187 HP | 364 HP |
| Engine RPM | 6300 RPM | 5400 RPM |
| Torque | 222 Nm | 506 Nm |
| Torque RPM | 5000 RPM | 4400 RPM |
| Engine Compression Ratio | 10.3:1 | 10.2:1 |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1350 kg | 2659 kg |
| Vehicle Length | 4440 mm | 5710 mm |
| Vehicle Width | 1750 mm | 2040 mm |
| Vehicle Height | 1420 mm | 1940 mm |
| Wheelbase Size | 2600 mm | 3380 mm |
| Fuel Consumption Overall | 11.9 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 129 L |
