2003 Mercedes-Benz SL vs. 2011 Infiniti FX
To start off, 2011 Infiniti FX is newer by 8 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz SL would be higher. At 5,000 cc (8 cylinders), 2011 Infiniti FX is equipped with a bigger engine. In terms of performance, 2011 Infiniti FX (390 HP @ 6500 RPM) has 88 more horse power than 2003 Mercedes-Benz SL. (302 HP @ 5600 RPM) In normal driving conditions, 2011 Infiniti FX should accelerate faster than 2003 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 2011 Infiniti FX weights approximately 157 kg more than 2003 Mercedes-Benz SL. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 Infiniti FX is all wheel drive (AWD), it will have significant more traction and grip than 2003 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2011 Infiniti FX 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, 2011 Infiniti FX (500 Nm @ 4400 RPM) has 40 more torque (in Nm) than 2003 Mercedes-Benz SL. (460 Nm @ 2700 RPM). This means 2011 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2003 Mercedes-Benz SL.
Compare all specifications:
| 2003 Mercedes-Benz SL | 2011 Infiniti FX | |
| Make | Mercedes-Benz | Infiniti |
| Model | SL | FX |
| Year Released | 2003 | 2011 |
| Body Type | Convertible | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4966 cc | 5000 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 302 HP | 390 HP |
| Engine RPM | 5600 RPM | 6500 RPM |
| Torque | 460 Nm | 500 Nm |
| Torque RPM | 2700 RPM | 4400 RPM |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1905 kg | 2062 kg |
| Vehicle Length | 4540 mm | 4859 mm |
| Vehicle Width | 1830 mm | 1928 mm |
| Vehicle Height | 1300 mm | 1679 mm |
| Wheelbase Size | 2520 mm | 2885 mm |
| Fuel Tank Capacity | 80 L | 90 L |
