2006 BMW Z4 vs. 2005 Pontiac Vibe
To start off, 2006 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Pontiac Vibe. In addition, the cost of maintenance, including insurance, on 2005 Pontiac Vibe would be higher. At 2,492 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 67 more horse power than 2005 Pontiac Vibe. (122 HP @ 6000 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2005 Pontiac Vibe. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 78 kg more than 2005 Pontiac Vibe. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Pontiac Vibe is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2005 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 85 more torque (in Nm) than 2005 Pontiac Vibe. (160 Nm @ 4200 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Pontiac Vibe. 2005 Pontiac Vibe has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Pontiac Vibe will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2005 Pontiac Vibe | |
| Make | BMW | Pontiac |
| Model | Z4 | Vibe |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 122 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 160 Nm |
| Torque RPM | 3500 RPM | 4200 RPM |
| Engine Bore Size | 84 mm | 79 mm |
| Engine Stroke Size | 75 mm | 91 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1335 kg | 1257 kg |
| Vehicle Length | 4100 mm | 4370 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1590 mm |
| Wheelbase Size | 2500 mm | 2650 mm |
| Fuel Consumption Overall | 9 L/100km | 7.1 L/100km |
| Fuel Tank Capacity | 55 L | 45 L |
