2005 Audi S4 vs. 2009 Ford Flex
To start off, 2009 Ford Flex is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 78 more horse power than 2009 Ford Flex. (262 HP @ 6250 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2009 Ford Flex. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 874 kg more than 2009 Ford Flex. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 74 more torque (in Nm) than 2009 Ford Flex. (336 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Ford Flex.
Compare all specifications:
| 2005 Audi S4 | 2009 Ford Flex | |
| Make | Audi | Ford |
| Model | S4 | Flex |
| Year Released | 2005 | 2009 |
| Body Type | Convertible | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 3496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 262 HP |
| Engine RPM | 6300 RPM | 6250 RPM |
| Torque | 410 Nm | 336 Nm |
| Engine Compression Ratio | 11.0:1 | 9.4:1 |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1840 kg | 966 kg |
| Vehicle Length | 4580 mm | 5130 mm |
| Vehicle Width | 1780 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1730 mm |
| Wheelbase Size | 2660 mm | 3000 mm |
| Fuel Consumption | 10.2 L/100km | 10.7 L/100km |
| Fuel Consumption City | 13.8 L/100km | 14.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
