2003 BMW 320 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 320. In addition, the cost of maintenance, including insurance, on 2003 BMW 320 would be higher. At 3,824 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (355 HP @ 6600 RPM) has 207 more horse power than 2003 BMW 320. (148 HP @ 5900 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 2003 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche 911 weights approximately 10 kg more than 2003 BMW 320. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 320. In wet, icy, snow, or gravel driving conditions, 2007 Porsche 911 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, 2007 Porsche 911 (401 Nm @ 4600 RPM) has 191 more torque (in Nm) than 2003 BMW 320. (210 Nm @ 3750 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 320.
Compare all specifications:
| 2003 BMW 320 | 2007 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 320 | 911 |
| Year Released | 2003 | 2007 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1995 cc | 3824 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 355 HP |
| Engine RPM | 5900 RPM | 6600 RPM |
| Torque | 210 Nm | 401 Nm |
| Torque RPM | 3750 RPM | 4600 RPM |
| Engine Bore Size | 84 mm | 100 mm |
| Engine Stroke Size | 90 mm | 76 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1465 kg | 1475 kg |
| Vehicle Length | 4490 mm | 4470 mm |
| Vehicle Width | 1760 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1310 mm |
| Wheelbase Size | 2730 mm | 2360 mm |
| Fuel Tank Capacity | 63 L | 67 L |
