2003 Infiniti Q45 vs. 2009 Mercedes-Benz C
To start off, 2009 Mercedes-Benz C is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2003 Infiniti Q45 would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2003 Infiniti Q45 (340 HP @ 6400 RPM) has 172 more horse power than 2009 Mercedes-Benz C. (168 HP @ 3800 RPM). In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 2009 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz C weights approximately 1026 kg more than 2003 Infiniti Q45.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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 Infiniti Q45 (451 Nm @ 4000 RPM) has 51 more torque (in Nm) than 2009 Mercedes-Benz C. (400 Nm @ 2000 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz C.
Compare all specifications:
| 2003 Infiniti Q45 | 2009 Mercedes-Benz C | |
| Make | Infiniti | Mercedes-Benz |
| Model | Q45 | C |
| Year Released | 2003 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 2148 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 168 HP |
| Engine RPM | 6400 RPM | 3800 RPM |
| Torque | 451 Nm | 400 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Compression Ratio | 10.5:1 | 17.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1804 kg | 2830 kg |
| Vehicle Length | 5080 mm | 4590 mm |
| Vehicle Width | 1850 mm | 1450 mm |
| Vehicle Height | 1500 mm | 1780 mm |
| Wheelbase Size | 2880 mm | 2770 mm |
| Fuel Tank Capacity | 81 L | 62 L |
