2005 Audi A4 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 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 2,671 cc (6 cylinders), 2006 Kia Optima is equipped with a bigger engine. In terms of performance, 2006 Kia Optima (170 HP @ 6000 RPM) has 70 more horse power than 2005 Audi A4. (100 HP @ 1900 RPM) In normal driving conditions, 2006 Kia Optima should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Kia Optima weights approximately 37 kg more than 2005 Audi A4. 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, 2005 Audi A4 (250 Nm @ 1900 RPM) has 5 more torque (in Nm) than 2006 Kia Optima. (245 Nm @ 4000 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.
Compare all specifications:
| 2005 Audi A4 | 2006 Kia Optima | |
| Make | Audi | Kia |
| Model | A4 | Optima |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1894 cc | 2671 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 100 HP | 170 HP |
| Engine RPM | 1900 RPM | 6000 RPM |
| Torque | 250 Nm | 245 Nm |
| Torque RPM | 1900 RPM | 4000 RPM |
| Engine Bore Size | 79.5 mm | 86.8 mm |
| Engine Stroke Size | 95.5 mm | 75 mm |
| Engine Compression Ratio | 19.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1487 kg |
| Vehicle Length | 4550 mm | 4730 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2710 mm |
| Fuel Consumption Overall | 5.7 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 70 L | 65 L |
