2009 BMW 523 vs. 2011 Mercedes-Benz S
To start off, 2011 Mercedes-Benz S is newer by 2 year(s). Which means there will be less support and parts availability for 2009 BMW 523. In addition, the cost of maintenance, including insurance, on 2009 BMW 523 would be higher. At 5,500 cc (8 cylinders), 2011 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2011 Mercedes-Benz S (382 HP @ 6000 RPM) has 207 more horse power than 2009 BMW 523. (175 HP @ 5800 RPM) In normal driving conditions, 2011 Mercedes-Benz S should accelerate faster than 2009 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz S weights approximately 496 kg more than 2009 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 Mercedes-Benz S (530 Nm @ 2800 RPM) has 300 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 2011 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523. 2011 Mercedes-Benz S has automatic transmission and 2009 BMW 523 has manual transmission. 2009 BMW 523 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW 523 | 2011 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 523 | S |
| Year Released | 2009 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 5500 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 382 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 230 Nm | 530 Nm |
| Torque RPM | 3500 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1525 kg | 2021 kg |
| Vehicle Width | 1470 mm | 1872 mm |
| Vehicle Height | 1850 mm | 1473 mm |
| Wheelbase Size | 2890 mm | 3165 mm |
| Fuel Tank Capacity | 70 L | 90 L |
