2009 BMW 320 vs. 2012 Mercedes-Benz S
To start off, 2012 Mercedes-Benz S is newer by 3 year(s). Which means there will be less support and parts availability for 2009 BMW 320. In addition, the cost of maintenance, including insurance, on 2009 BMW 320 would be higher. At 4,700 cc (8 cylinders), 2012 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2012 Mercedes-Benz S (429 HP @ 5250 RPM) has 288 more horse power than 2009 BMW 320. (141 HP @ 6000 RPM) In normal driving conditions, 2012 Mercedes-Benz S should accelerate faster than 2009 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2012 Mercedes-Benz S weights approximately 885 kg more than 2009 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 Mercedes-Benz S is all wheel drive (AWD), it will have significant more traction and grip than 2009 BMW 320. In wet, icy, snow, or gravel driving conditions, 2012 Mercedes-Benz S 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, 2012 Mercedes-Benz S (699 Nm @ 1800 RPM) has 509 more torque (in Nm) than 2009 BMW 320. (190 Nm @ 4250 RPM). This means 2012 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 320.
Compare all specifications:
| 2009 BMW 320 | 2012 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 320 | S |
| Year Released | 2009 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 4700 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 429 HP |
| Engine RPM | 6000 RPM | 5250 RPM |
| Torque | 190 Nm | 699 Nm |
| Torque RPM | 4250 RPM | 1800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1320 kg | 2205 kg |
| Vehicle Length | 4540 mm | 5245 mm |
| Vehicle Width | 1820 mm | 1872 mm |
| Vehicle Height | 1430 mm | 1473 mm |
| Wheelbase Size | 2770 mm | 3165 mm |
| Fuel Tank Capacity | 63 L | 90 L |
