2005 Alfa Romeo 156 vs. 2012 Infiniti G37
To start off, 2012 Infiniti G37 is newer by 7 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 3,700 cc (6 cylinders), 2012 Infiniti G37 is equipped with a bigger engine. In terms of performance, 2012 Infiniti G37 (348 HP @ 7400 RPM) has 210 more horse power than 2005 Alfa Romeo 156. (138 HP @ 4000 RPM) In normal driving conditions, 2012 Infiniti G37 should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2012 Infiniti G37 weights approximately 271 kg more than 2005 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 Infiniti G37 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2012 Infiniti G37. However, in wet, icy, snow, or gravel driving conditions, 2005 Alfa Romeo 156, being front wheel drive (FWD), will offer much better control with better grip. 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 Infiniti G37 (374 Nm @ 5200 RPM) has 64 more torque (in Nm) than 2005 Alfa Romeo 156. (310 Nm @ 2000 RPM). This means 2012 Infiniti G37 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156. 2012 Infiniti G37 has automatic transmission and 2005 Alfa Romeo 156 has manual transmission. 2005 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 Infiniti G37 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2012 Infiniti G37 | |
| Make | Alfa Romeo | Infiniti |
| Model | 156 | G37 |
| Year Released | 2005 | 2012 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 3700 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 348 HP |
| Engine RPM | 4000 RPM | 7400 RPM |
| Torque | 310 Nm | 374 Nm |
| Torque RPM | 2000 RPM | 5200 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1415 kg | 1686 kg |
| Fuel Tank Capacity | 63 L | 76 L |
