2008 Porsche Cayenne vs. 2005 Smart Roadster
To start off, 2008 Porsche Cayenne is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2005 Smart Roadster would be higher. At 3,598 cc (6 cylinders), 2008 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2008 Porsche Cayenne (287 HP @ 6200 RPM) has 187 more horse power than 2005 Smart Roadster. (100 HP @ 5250 RPM). In normal driving conditions, 2008 Porsche Cayenne should accelerate faster than 2005 Smart Roadster.
Because 2008 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2005 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2008 Porsche Cayenne 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 Porsche Cayenne (385 Nm @ 3000 RPM) has 255 more torque (in Nm) than 2005 Smart Roadster. (130 Nm @ 2500 RPM). This means 2008 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart Roadster.
Compare all specifications:
| 2008 Porsche Cayenne | 2005 Smart Roadster | |
| Make | Porsche | Smart |
| Model | Cayenne | Roadster |
| Year Released | 2008 | 2005 |
| Body Type | SUV | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 3598 cc | 698 cc |
| Engine Cylinders | 6 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 287 HP | 100 HP |
| Engine RPM | 6200 RPM | 5250 RPM |
| Torque | 385 Nm | 130 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 89 mm | 66.5 mm |
| Engine Stroke Size | 96.4 mm | 67 mm |
| Engine Compression Ratio | 12.3:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 227 km/hour | 190 km/hour |
| Acceleration 0-100mph | 8.1 seconds | 9.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4800 mm | 3430 mm |
| Vehicle Width | 1930 mm | 1620 mm |
| Vehicle Height | 1710 mm | 1200 mm |
| Wheelbase Size | 2860 mm | 2370 mm |
| Fuel Consumption Overall | 12.9 L/100km | 5.5 L/100km |
| Fuel Tank Capacity | 100 L | 35 L |
