2007 Audi S4 vs. 2005 Kia Optima
To start off, 2007 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Kia Optima. In addition, the cost of maintenance, including insurance, on 2005 Kia Optima would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (339 HP @ 7000 RPM) has 169 more horse power than 2005 Kia Optima. (170 HP @ 4000 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 223 kg more than 2005 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2007 Audi S4 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, 2007 Audi S4 (410 Nm) has 169 more torque (in Nm) than 2005 Kia Optima. (241 Nm). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 2007 Audi S4 | 2005 Kia Optima | |
| Make | Audi | Kia |
| Model | S4 | Optima |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2671 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 170 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 410 Nm | 241 Nm |
| Engine Bore Size | 84.5 mm | 87 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1710 kg | 1487 kg |
| Vehicle Length | 4590 mm | 4730 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2650 mm | 2710 mm |
| Fuel Consumption Overall | 12.3 L/100km | 10.4 L/100km |
| Fuel Tank Capacity | 63 L | 65 L |
