2005 Alfa Romeo 156 vs. 2006 Kia Optima
To start off, 2006 Kia Optima is newer by 1 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 2,671 cc (6 cylinders), 2006 Kia Optima is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (185 HP @ 5000 RPM) has 15 more horse power than 2006 Kia Optima. (170 HP @ 6000 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 2 kg more than 2006 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2006 Kia Optima (245 Nm @ 4000 RPM) has 23 more torque (in Nm) than 2005 Alfa Romeo 156. (222 Nm @ 5000 RPM). This means 2006 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2006 Kia Optima | |
| Make | Alfa Romeo | Kia |
| Model | 156 | Optima |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2671 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 185 HP | 170 HP |
| Engine RPM | 5000 RPM | 6000 RPM |
| Torque | 222 Nm | 245 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Engine Bore Size | 88 mm | 86.7 mm |
| Engine Stroke Size | 68.3 mm | 75 mm |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1490 kg | 1488 kg |
| Vehicle Length | 4450 mm | 4730 mm |
| Vehicle Width | 1750 mm | 1820 mm |
| Vehicle Height | 1440 mm | 1420 mm |
| Wheelbase Size | 2710 mm | 2710 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 72 L | 65 L |
