As you can see, the SUV has its wheels on the white border tile, so two of these vehicles would not fit.
The Indiana Jones vehicle in the background, which is also 6-wide, fits just fine.
The SUV fits on the elevator, but just barely, you have to make sure the rearview mirrors don't hit anything.
It puts quite a strain on the rope when going up by the way.
And speaking of the elevator, I found out that the reason it slips a bit (without a car on it, going down) is not because of the rope, but because of the tires on the back, a little bit too much traction.