2007 BMW 320 vs. 2003 Mercedes-Benz S
To start off, 2007 BMW 320 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 3,722 cc (6 cylinders), 2003 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2003 Mercedes-Benz S (242 HP @ 5700 RPM) has 94 more horse power than 2007 BMW 320. (148 HP @ 6200 RPM) In normal driving conditions, 2003 Mercedes-Benz S should accelerate faster than 2007 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz S weights approximately 305 kg more than 2007 BMW 320. 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 (350 Nm @ 3000 RPM) has 149 more torque (in Nm) than 2007 BMW 320. (201 Nm @ 3600 RPM). This means 2003 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 320. 2003 Mercedes-Benz S has automatic transmission and 2007 BMW 320 has manual transmission. 2007 BMW 320 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 320 | 2003 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 320 | S |
| Year Released | 2007 | 2003 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 3722 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 148 HP | 242 HP |
| Engine RPM | 6200 RPM | 5700 RPM |
| Torque | 201 Nm | 350 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 90 mm | 84 mm |
| Fuel Type | Gasoline - Premium | 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 | 1430 kg | 1735 kg |
| Vehicle Length | 4530 mm | 5170 mm |
| Vehicle Width | 1420 mm | 1860 mm |
| Vehicle Height | 1820 mm | 1460 mm |
| Wheelbase Size | 2770 mm | 3090 mm |
| Fuel Tank Capacity | 63 L | 62 L |
