2008 BMW X5 vs. 2006 Smart Roadster
To start off, 2008 BMW X5 is newer by 2 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 4,619 cc, 2008 BMW X5 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 1295 kg more than 2006 Smart Roadster.
Because 2008 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2008 BMW X5 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, 2008 BMW X5 (480 Nm @ 3700 RPM) has 370 more torque (in Nm) than 2006 Smart Roadster. (110 Nm @ 3000 RPM). This means 2008 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart Roadster.
Compare all specifications:
| 2008 BMW X5 | 2006 Smart Roadster | |
| Make | BMW | Smart |
| Model | X5 | Roadster |
| Year Released | 2008 | 2006 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4619 cc | 698 cc |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 0 HP | 81 HP |
| Torque | 480 Nm | 110 Nm |
| Torque RPM | 3700 RPM | 3000 RPM |
| Engine Bore Size | 93.1 mm | 66.5 mm |
| Engine Stroke Size | 85 mm | 67 mm |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 6.5 seconds | 10.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2180 kg | 885 kg |
| Vehicle Width | 1880 mm | 1620 mm |
| Wheelbase Size | 2830 mm | 2370 mm |
| Fuel Consumption Overall | 14.9 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 93 L | 35 L |
