2007 BMW Convertible vs. 2009 BMW 318
To start off, 2009 BMW 318 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Convertible. In addition, the cost of maintenance, including insurance, on 2007 BMW Convertible would be higher. At 4,797 cc (8 cylinders), 2007 BMW Convertible is equipped with a bigger engine. In terms of performance, 2007 BMW Convertible (362 HP @ 6300 RPM) has 214 more horse power than 2009 BMW 318. (148 HP @ 6200 RPM). In normal driving conditions, 2007 BMW Convertible should accelerate faster than 2009 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Convertible weights approximately 455 kg more than 2009 BMW 318. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 BMW Convertible (490 Nm @ 3900 RPM) has 290 more torque (in Nm) than 2009 BMW 318. (200 Nm @ 3600 RPM). This means 2007 BMW Convertible will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 318.
Compare all specifications:
| 2007 BMW Convertible | 2009 BMW 318 | |
| Make | BMW | BMW |
| Model | Convertible | 318 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4797 cc | 1993 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 362 HP | 148 HP |
| Engine RPM | 6300 RPM | 6200 RPM |
| Torque | 490 Nm | 200 Nm |
| Torque RPM | 3900 RPM | 3600 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 219 km/hour |
| Acceleration 0-100mph | 5.8 seconds | 9.2 seconds |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1850 kg | 1395 kg |
| Vehicle Length | 4830 mm | 4490 mm |
| Vehicle Width | 1380 mm | 1760 mm |
| Vehicle Height | 1860 mm | 1380 mm |
| Wheelbase Size | 2790 mm | 2730 mm |
| Fuel Tank Capacity | 70 L | 63 L |
