2003 Alfa Romeo 156 vs. 2013 Infiniti G
To start off, 2013 Infiniti G is newer by 10 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 3,696 cc (4 cylinders), 2013 Infiniti G is equipped with a bigger engine. In terms of performance, 2013 Infiniti G (324 HP @ 7000 RPM) has 186 more horse power than 2003 Alfa Romeo 156. (138 HP @ 6200 RPM) In normal driving conditions, 2013 Infiniti G should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2013 Infiniti G weights approximately 341 kg more than 2003 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Infiniti G is all wheel drive (AWD), it will have significant more traction and grip than 2003 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2013 Infiniti G 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, 2013 Infiniti G (365 Nm @ 5200 RPM) has 201 more torque (in Nm) than 2003 Alfa Romeo 156. (164 Nm @ 3900 RPM). This means 2013 Infiniti G will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2013 Infiniti G | |
| Make | Alfa Romeo | Infiniti |
| Model | 156 | G |
| Year Released | 2003 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1774 cc | 3696 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 324 HP |
| Engine RPM | 6200 RPM | 7000 RPM |
| Torque | 164 Nm | 365 Nm |
| Torque RPM | 3900 RPM | 5200 RPM |
| Engine Bore Size | 82 mm | 95 mm |
| Engine Stroke Size | 82.7 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Gasoline / Electric Hybrid |
| Drive Type | Front | AWD |
| Transmission Type | Manual | CVT |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1340 kg | 1681 kg |
| Vehicle Length | 4440 mm | 4750 mm |
| Vehicle Width | 1750 mm | 1773 mm |
| Vehicle Height | 1400 mm | 1453 mm |
| Wheelbase Size | 2600 mm | 2850 mm |
