2005 Alfa Romeo 156 vs. 2010 Infiniti M
To start off, 2010 Infiniti M is newer by 5 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 4,493 cc (8 cylinders), 2010 Infiniti M is equipped with a bigger engine. In terms of performance, 2010 Infiniti M (325 HP @ 6400 RPM) has 151 more horse power than 2005 Alfa Romeo 156. (174 HP @ 4000 RPM) In normal driving conditions, 2010 Infiniti M should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2010 Infiniti M weights approximately 209 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 2010 Infiniti M is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2010 Infiniti M 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, 2010 Infiniti M (456 Nm @ 4000 RPM) has 71 more torque (in Nm) than 2005 Alfa Romeo 156. (385 Nm @ 2000 RPM). This means 2010 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156. 2010 Infiniti M 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. 2010 Infiniti M will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2010 Infiniti M | |
| Make | Alfa Romeo | Infiniti |
| Model | 156 | M |
| Year Released | 2005 | 2010 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 4493 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 174 HP | 325 HP |
| Engine RPM | 4000 RPM | 6400 RPM |
| Torque | 385 Nm | 456 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Compression Ratio | 18.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1510 kg | 1719 kg |
| Vehicle Length | 4440 mm | 4940 mm |
| Vehicle Width | 1750 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1530 mm |
| Wheelbase Size | 2550 mm | 2910 mm |
| Fuel Consumption Overall | 6.6 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 63 L | 76 L |
