2007 BMW 323 vs. 2003 Mercedes-Benz S
To start off, 2007 BMW 323 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz S would be higher. At 5,513 cc (12 cylinders), 2003 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2003 Mercedes-Benz S (493 HP @ 5500 RPM) has 318 more horse power than 2007 BMW 323. (175 HP @ 5800 RPM) In normal driving conditions, 2003 Mercedes-Benz S should accelerate faster than 2007 BMW 323. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz S weights approximately 566 kg more than 2007 BMW 323. 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, 2003 Mercedes-Benz S (800 Nm @ 1800 RPM) has 570 more torque (in Nm) than 2007 BMW 323. (230 Nm @ 3500 RPM). This means 2003 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 323. 2003 Mercedes-Benz S has automatic transmission and 2007 BMW 323 has manual transmission. 2007 BMW 323 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 323 | 2003 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 323 | S |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 5513 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 175 HP | 493 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 230 Nm | 800 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1494 kg | 2060 kg |
| Vehicle Length | 4530 mm | 5170 mm |
| Vehicle Width | 1430 mm | 1860 mm |
| Vehicle Height | 1820 mm | 1460 mm |
| Wheelbase Size | 2770 mm | 3090 mm |
