The word car comes from carriage, so it is normal that some of the terms and names have stayed with them.
The coach had doors in the side, with an iron step protected by leather that became the ‘boot’ in which servants might ride.
Originally, the “boot” was a space on board the carriage for one or two servants to sit.
What is the boot of a car?
The trunk (North American English), boot (British English), dickie (Indian English) (also spelled dickey or dicky) or compartment (South-East Asia) of a car is the vehicle’s main storage or cargo compartment.
What is a car boot called in America?
Boot and trunk. Q From Brock Lupton: Why is the rear storage compartment of a car (trunk in North American parlance) in British usage called a boot? A Boot is an excellent example of linguistic conservatism.
How much does a boot for a car cost?
On passenger cars, CostHelper readers report paying $165-$300 to replace one axle and boot, at an average cost of $228; or $218-$510 to do both sides, with an average of $414.
Photo in the article by “Geograph”