2009 BMW Z4 vs. 2009 Saturn Sky
To start off, both 2009 BMW Z4 and 2009 Saturn Sky were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,494 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (215 HP @ 6500 RPM) has 42 more horse power than 2009 Saturn Sky. (173 HP @ 5800 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2009 Saturn Sky. With that said, vehicle weight also plays an important factor in acceleration. 2009 Saturn Sky weights approximately 445 kg more than 2009 BMW Z4.
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, 2009 BMW Z4 (250 Nm @ 2000 RPM) has 24 more torque (in Nm) than 2009 Saturn Sky. (226 Nm @ 4500 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Saturn Sky. 2009 BMW Z4 has automatic transmission and 2009 Saturn Sky has manual transmission. 2009 Saturn Sky will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW Z4 | 2009 Saturn Sky | |
| Make | BMW | Saturn |
| Model | Z4 | Sky |
| Year Released | 2009 | 2009 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2400 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 173 HP |
| Engine RPM | 6500 RPM | 5800 RPM |
| Torque | 250 Nm | 226 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Bore Size | 82 mm | 99.1 mm |
| Engine Stroke Size | 78.8 mm | 75.9 mm |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1290 kg | 1735 kg |
| Vehicle Length | 4100 mm | 4100 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1310 mm | 1280 mm |
| Wheelbase Size | 2500 mm | 2420 mm |
| Fuel Consumption Overall | 9.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 55 L | 49 L |
