Spock makes the fastest turbolift journey in the history of the universe going from the shuttlebay at the very rear of the ship to the bridge at the top in about 3 seconds.
Why should the starting point (the hall with the brightly colored diagonal tubes) be the shuttlebay? We don't see any shuttles there.
Admittedly, Pike also stops there on his way to the shuttle after Nero has summoned him, with Spock, Kirk and Sulu in tag - but that again speaks in favor of this location being close to the bridge and distant from the shuttlebay, because Spock has no business going to the shuttlebay at that time.
The USS Mayflower's saucer, roughly the same size as the Enterprise's at the spacedock, is suddenly much, much bigger when they nearly collide over Vulcan.
There's no "
USS Mayflower" at spacedock - only nameless starships. Or more accurately, starships plus a long list of starship names spoken out but never seen painted on the hulls. "Mayflower" is not among the names spoken out, and that's a blessing, because the other names already amount to more than seven ships!
The thing its, we don't know what class of starship the
Mayflower might have been before she underwent her radical makeover.
In any case, the saucer is not really that much bigger than the
Enterprise one in the collision scene. And the early comparison charts do indicate that the
Enterprise would have a smaller saucer than the older starships - an idea the spacedock scene can still support if we squint just a little.
Timo Saloniemi