2003 Pontiac Vibe vs. 2008 Pontiac G8
To start off, 2008 Pontiac G8 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Pontiac Vibe. In addition, the cost of maintenance, including insurance, on 2003 Pontiac Vibe 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 238 more horse power than 2003 Pontiac Vibe. (123 HP @ 6000 RPM) In normal driving conditions, 2008 Pontiac G8 should accelerate faster than 2003 Pontiac Vibe. With that said, vehicle weight also plays an important factor in acceleration. 2008 Pontiac G8 weights approximately 127 kg more than 2003 Pontiac Vibe. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Pontiac Vibe is four wheel drive (4WD), it will have significant more traction and grip than 2008 Pontiac G8. In wet, icy, snow, or gravel driving conditions, 2003 Pontiac Vibe 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 Pontiac G8 (522 Nm @ 4400 RPM) has 362 more torque (in Nm) than 2003 Pontiac Vibe. (160 Nm @ 4200 RPM). This means 2008 Pontiac G8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Pontiac Vibe. 2008 Pontiac G8 has automatic transmission and 2003 Pontiac Vibe has manual transmission. 2003 Pontiac Vibe 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:
| 2003 Pontiac Vibe | 2008 Pontiac G8 | |
| Make | Pontiac | Pontiac |
| Model | Vibe | G8 |
| Year Released | 2003 | 2008 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 5999 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 123 HP | 361 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 160 Nm | 522 Nm |
| Torque RPM | 4200 RPM | 4400 RPM |
| Engine Bore Size | 79 mm | 102 mm |
| Engine Stroke Size | 91 mm | 92 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1225 kg | 1352 kg |
| Vehicle Length | 4370 mm | 4990 mm |
| Vehicle Width | 1780 mm | 1910 mm |
| Vehicle Height | 1610 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2920 mm |
| Fuel Tank Capacity | 45 L | 72 L |
