2008 GMC Sierra vs. 2005 Smart Roadster
To start off, 2008 GMC Sierra 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 6,000 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (364 HP @ 5400 RPM) has 263 more horse power than 2005 Smart Roadster. (101 HP @ 5250 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2005 Smart Roadster.
Because 2008 GMC Sierra 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 GMC Sierra 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 GMC Sierra (506 Nm @ 4400 RPM) has 376 more torque (in Nm) than 2005 Smart Roadster. (130 Nm @ 2500 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart Roadster. 2008 GMC Sierra has automatic transmission and 2005 Smart Roadster has manual transmission. 2005 Smart Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 GMC Sierra | 2005 Smart Roadster | |
| Make | GMC | Smart |
| Model | Sierra | Roadster |
| Year Released | 2008 | 2005 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 6000 cc | 698 cc |
| Engine Cylinders | 8 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 364 HP | 101 HP |
| Engine RPM | 5400 RPM | 5250 RPM |
| Torque | 506 Nm | 130 Nm |
| Torque RPM | 4400 RPM | 2500 RPM |
| Engine Compression Ratio | 10.2:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 3 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 5710 mm | 3430 mm |
| Vehicle Width | 2040 mm | 1620 mm |
| Vehicle Height | 1940 mm | 1200 mm |
| Wheelbase Size | 3380 mm | 2370 mm |
| Fuel Consumption Overall | 13.1 L/100km | 5.3 L/100km |
| Fuel Tank Capacity | 129 L | 35 L |
