tackling of other things such as motor mounts, the rear turbo coolant line that's normally hard to reach, etc
FWIW - When I did the engine pull on my Z I used 2x4 cribbing (site reference name = nixit blocks) to get the car about 15 inches off the ground. Made it very easy to use a creeper underneath. Really nice to be able to zip around under there and lots of space to work.