2003 Alfa Romeo 156 vs. 2007 Infiniti G35
To start off, 2007 Infiniti G35 is newer by 4 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 3,498 cc (6 cylinders), 2007 Infiniti G35 is equipped with a bigger engine. In terms of performance, 2007 Infiniti G35 (306 HP @ 6800 RPM) has 132 more horse power than 2003 Alfa Romeo 156. (174 HP @ 4000 RPM) In normal driving conditions, 2007 Infiniti G35 should accelerate faster than 2003 Alfa Romeo 156.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2003 Alfa Romeo 156 (385 Nm @ 2000 RPM) has 22 more torque (in Nm) than 2007 Infiniti G35. (363 Nm @ 5200 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2007 Infiniti G35. 2007 Infiniti G35 has automatic transmission and 2003 Alfa Romeo 156 has manual transmission. 2003 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Infiniti G35 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2007 Infiniti G35 | |
| Make | Alfa Romeo | Infiniti |
| Model | 156 | G35 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 3498 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 174 HP | 306 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 385 Nm | 363 Nm |
| Torque RPM | 2000 RPM | 5200 RPM |
| Engine Bore Size | 82 mm | 96 mm |
| Engine Stroke Size | 90.4 mm | 81 mm |
| Fuel Type | Diesel | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4440 mm | 4760 mm |
| Vehicle Width | 1750 mm | 1780 mm |
| Vehicle Height | 1440 mm | 1460 mm |
| Wheelbase Size | 2550 mm | 2860 mm |
| Fuel Consumption Overall | 6.6 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 63 L | 76 L |
