2006 BMW X5 vs. 2001 Smart Roadster
To start off, 2006 BMW X5 is newer by 5 year(s). Which means there will be less support and parts availability for 2001 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2001 Smart Roadster would be higher. At 2,979 cc (6 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (228 HP @ 3500 RPM) has 147 more horse power than 2001 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2006 BMW X5 should accelerate faster than 2001 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 765 kg more than 2001 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2001 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 BMW X5 (300 Nm @ 3500 RPM) has 190 more torque (in Nm) than 2001 Smart Roadster. (110 Nm @ 2250 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2001 Smart Roadster.
Compare all specifications:
| 2006 BMW X5 | 2001 Smart Roadster | |
| Make | BMW | Smart |
| Model | X5 | Roadster |
| Year Released | 2006 | 2001 |
| Body Type | SUV | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 2979 cc | 698 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 228 HP | 81 HP |
| Engine RPM | 3500 RPM | 5250 RPM |
| Torque | 300 Nm | 110 Nm |
| Torque RPM | 3500 RPM | 2250 RPM |
| Engine Bore Size | 84 mm | 66.5 mm |
| Engine Stroke Size | 89.6 mm | 67 mm |
| Engine Compression Ratio | 10.2:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 202 km/hour | 175 km/hour |
| Acceleration 0-100mph | 8.5 seconds | 10.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1630 kg | 865 kg |
| Vehicle Length | 4670 mm | 3430 mm |
| Vehicle Width | 1880 mm | 1620 mm |
| Vehicle Height | 1720 mm | 1200 mm |
| Wheelbase Size | 2830 mm | 2370 mm |
| Fuel Tank Capacity | 93 L | 35 L |
