2008 BMW 545 vs. 2007 BMW Convertible
To start off, 2008 BMW 545 is newer by 1 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 4,799 cc (8 cylinders), 2007 BMW Convertible is equipped with a bigger engine. In terms of performance, 2007 BMW Convertible (362 HP @ 6300 RPM) has 34 more horse power than 2008 BMW 545. (328 HP @ 6100 RPM) In normal driving conditions, 2007 BMW Convertible should accelerate faster than 2008 BMW 545. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 545 weights approximately 125 kg more than 2007 BMW Convertible.
Let's talk about torque, 2007 BMW Convertible (490 Nm @ 3600 RPM) has 40 more torque (in Nm) than 2008 BMW 545. (450 Nm @ 3600 RPM). This means 2007 BMW Convertible will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 545. 2007 BMW Convertible has automatic transmission and 2008 BMW 545 has manual transmission. 2008 BMW 545 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW Convertible will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW 545 | 2007 BMW Convertible | |
| Make | BMW | BMW |
| Model | 545 | Convertible |
| Year Released | 2008 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4799 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 362 HP |
| Engine RPM | 6100 RPM | 6300 RPM |
| Torque | 450 Nm | 490 Nm |
| Torque RPM | 3600 RPM | 3600 RPM |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 245 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 5.7 seconds |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1975 kg | 1850 kg |
| Vehicle Length | 4850 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1380 mm |
| Vehicle Height | 1500 mm | 1860 mm |
| Wheelbase Size | 2840 mm | 2790 mm |
| Fuel Tank Capacity | 70 L | 70 L |
