1. A wizard or witch may Apparate with inanimate objects.
For instance, after Mundungus Apparates back to Little Whinging:
He was also clutching a silvery bundle that Harry recognized at once as an Invisibility Cloak.
Order of the Phoenix, p. 22
In that scenario, the cloak is not being worn, indicating the ability to carry inanimate items through Apparition (though not technically Side-Along Apparition).
Also, Hermione carries around a bag in the Deathly Hallows which contains, among many other things, a tent filled with household items including at least, as mentioned in the question, a chair, a kitchen, and a bunk bed:
The interior was exactly as Harry remembered it: a small flat, complete with bathroom and tiny kitchen. He shoved aside an old armchair and lowered Ron carefully onto the lower berth of a bunk bed.
Deathly Hallows, p. 274
While this is not technically the same as Hermione grabbing a chair and ’pulling’ it to a new place through Apparition. I see more evidence for the positive case that witches and wizards can Apparate with unconscious items than for the negative case that he/she can not.
Next, we have a scene in the Three Broomsticks (in the chapter “Silver and Opals” in Half-Blood Prince) where Harry confronts Mundungus who Apparates with a suitcase:
Gasping and spluttering, Mundungus seized his fallen case, then – CRACK – he Disapparated.
Deathly Hallows, p. 246
In an October 2000 interview with Scholastic, JKR was asked about wizards/witches Apparating into Muggle vaults and stealing the contents. She acknowledged that this was a possibility, which implies that it would indeed be possible to perform such a burglary, and we must assume that there would be no trouble in a wizard Apparating with bags of money, for instance:
Question: How does the wizarding world protect Muggle banks and vaults, etc. from wizards apparating into them and stealing the contents?
J.K. Rowling responds: Well, the Ministry of Magic keeps tabs on people apparating. That’s why you have to have a license to do it, and the moment you abuse it you can find yourself in serious trouble (or Azkaban!).
Finally, if you grant that wizards or witches can apparate with inanimate objects, but only have the hurdle of weight or size to overcome (as you have asked about cars or tables), let’s look at two instances where someone Apparates with heavier loads, though they are in both cases live beings:
First, there’s Harry in Deathly Hallows, when getting out of Malfoy Manor:
… then he bent down to tug Griphook out from under the chandelier. Hoisting the groaning goblin, who still clung to the sword, over one shoulder, Harry seized Dobby’s hand and spun on the spot to Disapparate.
Deathly Hallows, p. 474
Second, there’s Hermione, again in Deathly Hallows, when escaping the collapsing Lovegood house:
‘Please, Ron! Harry, hold on tight to my hand, Ron, grab my shoulder.’ […] Hermione twisted in midair and the thundering of the collapsing house rang in Harry’s ears as she dragged him once more into darkness.
Deathly Hallows, pp. 422–423
Hermione uses Side-Along Apparition to save Harry and Ron. Because it is safe to assume that both Harry and Ron together would be a relatively heavier load for Hermione, and she executes the Apparition perfectly, it follows that it is not impossible to use Apparition for heavy loads.
Though the last two points may not directly answer your question about Apparition with unconscious objects, we can build a cumulative case to prove that it is more probable than not that a wizard or witch can Apparate with a table or a car:
- A witch or wizard has been shown many times to apparate with inanimate objects.
- A witch or wizard has also been shown at least twice to apparate with relatively heavy loads.
- Therefore, we can at least assume it is probable that the inanimate object being apparated with could, in fact, also be a heavy load.
2. A wizard or a witch may use Side-Along Apparition with another conscious being, even if that being is unwilling:
There is an instance of this very thing happening in Deathly Hallows as well, so we know for certain that this is possible:
‘Grab hold, and make it tight. I’ll do Potter!’ said Greyback, seizing a fistful of Harry’s hair; Harry could feel his long, yellow nails scratching his scalp. ‘On three! One – two – three –’
They Disapparated, pulling the prisoners with them. Harry struggled, trying to throw off Greyback’s hand, but it was hopeless: Ron and Hermione were squeezed tightly against him on either side, he could not separate from the group […]
Deathly Hallows, p. 454