2006 BMW 545 vs. 2006 Smart Roadster
To start off, both 2006 BMW 545 and 2006 Smart Roadster were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,396 cc (8 cylinders), 2006 BMW 545 is equipped with a bigger engine. In terms of performance, 2006 BMW 545 (328 HP @ 6100 RPM) has 247 more horse power than 2006 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2006 BMW 545 should accelerate faster than 2006 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 545 weights approximately 970 kg more than 2006 Smart Roadster. 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, 2006 BMW 545 (450 Nm @ 3600 RPM) has 340 more torque (in Nm) than 2006 Smart Roadster. (110 Nm @ 3000 RPM). This means 2006 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart Roadster.
Compare all specifications:
| 2006 BMW 545 | 2006 Smart Roadster | |
| Make | BMW | Smart |
| Model | 545 | Roadster |
| Year Released | 2006 | 2006 |
| Body Type | Sedan | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 4396 cc | 698 cc |
| Engine Cylinders | 8 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 328 HP | 81 HP |
| Engine RPM | 6100 RPM | 5250 RPM |
| Torque | 450 Nm | 110 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Engine Bore Size | 92 mm | 66.5 mm |
| Engine Stroke Size | 83 mm | 67 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 175 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 10.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1835 kg | 865 kg |
| Vehicle Length | 4850 mm | 3430 mm |
| Vehicle Width | 1850 mm | 1620 mm |
| Vehicle Height | 1380 mm | 1200 mm |
| Wheelbase Size | 2890 mm | 2370 mm |
| Fuel Consumption Overall | 10.6 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 70 L | 35 L |
