can one remove the handle quickly to enable loading in car

The item comes in a kit form so will easily fit into any size car. If you are looking at removing the handle once its assembled, then you will need a spanner and will only take a couple of minutes, but it is not recommended to keep doing this.

What is the size or squeegee

The size of the carton which it is packed in is 64cm x 12cm x 30cm with a weight of 6kgs. The approx. width of the squeegee when assembled is 5ft.