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I would not use that on the cruze, it will stick down way to low and if you hit it will loose all your oil and possibly take out the engine.

BTW I had a 2004 cavalier 2.2 ecotec, I was sleeping in the passenger seat when a 4x4 piece of wood(wheel chock) fell off the truck in front of us. No time to react with on coming traffic and a deep ditch, we hit it dead center of the front of the car. Instantly the oil light came on so we shut down the car. That piece of wood took out the entire front of the oil pan!!! Aluminum pan exploded into a million pieces. With that said no way I would use a Fumoto valve on that car either. Anything even hanging off the side of pan can catch on road debris and do significant damage.

I have used them in the past with trucks but even then it didn't save enough time to be worthwhile.

 

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What is even the purpose of this?

Its not entirely obvious in the photo the OP posted, but there is a small lever you flip out of a notch that opens the drain, so you don't need any tools to drain the oil. You can attach a hose to drain directly into a container or jug with no mess.

 

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I can definitely see where in some applications this would be quite handy. Say you do a custom engine install and there is clearance or drain issues, could get the fumoto valve with the hose attachment and run the oil to a more convenient drain location.

 

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Unless you're doing something wrong, draining the oil on a car shouldn't really be all that messy or difficult...the oil filter is usually the messier part (i.e.: the Cav's is sideways on the back of the engine. Gotta make sure the drain pan is underneath to catch the old oil - and the new oil from the new filter when you dump it all out trying to find the fitting).

Only the 2.2 OHV in the Cavalier has the oil filter located there, the 2.2 ecotec has the filter in the exact same location and is also a cartridge style like the cruze. You are right though, the filter is typically the messiest part.