2008 Infiniti M vs. 2003 Mercedes-Benz SL
To start off, 2008 Infiniti M is newer by 5 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 5,439 cc (8 cylinders), 2003 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2003 Mercedes-Benz SL (493 HP @ 6100 RPM) has 168 more horse power than 2008 Infiniti M. (325 HP @ 6400 RPM) In normal driving conditions, 2003 Mercedes-Benz SL should accelerate faster than 2008 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz SL weights approximately 635 kg more than 2008 Infiniti M. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Infiniti M is four wheel drive (4WD), it will have significant more traction and grip than 2003 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2008 Infiniti M 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, 2003 Mercedes-Benz SL (700 Nm @ 2750 RPM) has 244 more torque (in Nm) than 2008 Infiniti M. (456 Nm @ 4000 RPM). This means 2003 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2008 Infiniti M.
Compare all specifications:
| 2008 Infiniti M | 2003 Mercedes-Benz SL | |
| Make | Infiniti | Mercedes-Benz |
| Model | M | SL |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 5439 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 325 HP | 493 HP |
| Engine RPM | 6400 RPM | 6100 RPM |
| Torque | 456 Nm | 700 Nm |
| Torque RPM | 4000 RPM | 2750 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1955 kg |
| Vehicle Length | 4900 mm | 4540 mm |
| Vehicle Width | 1800 mm | 1830 mm |
| Vehicle Height | 1530 mm | 1300 mm |
| Wheelbase Size | 2910 mm | 2570 mm |
| Fuel Consumption Overall | 14.9 L/100km | 13.5 L/100km |
| Fuel Tank Capacity | 76 L | 80 L |
