If you are waxing your chain then remove the chain - one less thing in the way. If you are not - give it a try it keeps things clean and easy.
Note: Before you start if you use a permanent marker and/or tape to indicate how far you insert the seat-post and its orientation... =saved time later. This is even more important with respect to the boom or handlebar if you have to move them.
Take off the front wheel (undo quick release then lift by the adjustable boom).
Lay down the bike on it's side (I did it drivetrain = right side up in these pictures (left side up next post).
The easy way to remove the rear wheel - Cruzbike headstand - bet you didn't know you could do gymnastics with it! :
Take off the seat (2 thumbscrews below the seat and the quick release for the seat post:
Completely remove top quick release from the shock:
Rotate the rear down and forward until it covers the front fender and the axle dropouts almost meet. You now have a much less awkward and much smaller little bundle about the size of two unicycles.
Fit in the rear of your hatchback, van, suv, etc. vertically. I flipped it around so that the drivetrain is towards the seats and padded the chainring gears with an old sweater (not necessary because it did not move at all and the chainrings are clean (wax not oil).
The handlebar that I have (Woodchipper?? maybe??) helped support the whole contraption in the back of the van.
In a car trunk you may be able to fit this horizontally.
Note: On the return trip I only removed the rear wheel. The front wheel fit inside the rear wheel space quite nicely. (I did not photograph the return trip however - sorry.)