2007 BMW 650 vs. 2006 Smart Roadster
To start off, 2007 BMW 650 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2006 Smart Roadster would be higher. At 4,797 cc (8 cylinders), 2007 BMW 650 is equipped with a bigger engine. In terms of performance, 2007 BMW 650 (362 HP @ 6300 RPM) has 262 more horse power than 2006 Smart Roadster. (100 HP @ 5250 RPM). In normal driving conditions, 2007 BMW 650 should accelerate faster than 2006 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 650 weights approximately 675 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, 2007 BMW 650 (490 Nm @ 3400 RPM) has 360 more torque (in Nm) than 2006 Smart Roadster. (130 Nm @ 2500 RPM). This means 2007 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart Roadster.
Compare all specifications:
| 2007 BMW 650 | 2006 Smart Roadster | |
| Make | BMW | Smart |
| Model | 650 | Roadster |
| Year Released | 2007 | 2006 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 4797 cc | 696 cc |
| Engine Cylinders | 8 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 362 HP | 100 HP |
| Engine RPM | 6300 RPM | 5250 RPM |
| Torque | 490 Nm | 130 Nm |
| Torque RPM | 3400 RPM | 2500 RPM |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 190 km/hour |
| Acceleration 0-100mph | 5.4 seconds | 9.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1640 kg | 965 kg |
| Vehicle Length | 4830 mm | 3430 mm |
| Vehicle Width | 1380 mm | 1620 mm |
| Vehicle Height | 1860 mm | 1200 mm |
| Wheelbase Size | 2790 mm | 2370 mm |
| Fuel Tank Capacity | 70 L | 35 L |
