2003 Infiniti Q45 vs. 2007 Mercedes-Benz SLK
To start off, 2007 Mercedes-Benz SLK is newer by 4 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 72 more horse power than 2007 Mercedes-Benz SLK. (268 HP @ 5750 RPM). In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 2007 Mercedes-Benz SLK.
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, 2007 Mercedes-Benz SLK (510 Nm @ 4000 RPM) has 59 more torque (in Nm) than 2003 Infiniti Q45. (451 Nm @ 4000 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2003 Infiniti Q45.
Compare all specifications:
| 2003 Infiniti Q45 | 2007 Mercedes-Benz SLK | |
| Make | Infiniti | Mercedes-Benz |
| Model | Q45 | SLK |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 340 HP | 268 HP |
| Engine RPM | 6400 RPM | 5750 RPM |
| Torque | 451 Nm | 510 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Height | 1500 mm | 1280 mm |
| Wheelbase Size | 2880 mm | 2440 mm |
| Fuel Tank Capacity | 81 L | 70 L |
