2008 Pontiac G8 vs. 2005 Smart Roadster
To start off, 2008 Pontiac G8 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 5,999 cc (8 cylinders), 2008 Pontiac G8 is equipped with a bigger engine. In terms of performance, 2008 Pontiac G8 (361 HP @ 5300 RPM) has 261 more horse power than 2005 Smart Roadster. (100 HP @ 5250 RPM). In normal driving conditions, 2008 Pontiac G8 should accelerate faster than 2005 Smart Roadster.
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, 2008 Pontiac G8 (522 Nm @ 4400 RPM) has 392 more torque (in Nm) than 2005 Smart Roadster. (130 Nm @ 2500 RPM). This means 2008 Pontiac G8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart Roadster. 2008 Pontiac G8 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 Pontiac G8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Pontiac G8 | 2005 Smart Roadster | |
| Make | Pontiac | Smart |
| Model | G8 | Roadster |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 5999 cc | 698 cc |
| Engine Cylinders | 8 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 361 HP | 100 HP |
| Engine RPM | 5300 RPM | 5250 RPM |
| Torque | 522 Nm | 130 Nm |
| Torque RPM | 4400 RPM | 2500 RPM |
| Engine Bore Size | 102 mm | 66.5 mm |
| Engine Stroke Size | 92 mm | 67 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4990 mm | 3430 mm |
| Vehicle Width | 1910 mm | 1620 mm |
| Vehicle Height | 1470 mm | 1200 mm |
| Wheelbase Size | 2920 mm | 2370 mm |
| Fuel Consumption Overall | 11.2 L/100km | 5.5 L/100km |
| Fuel Tank Capacity | 72 L | 35 L |
