IPA: /ˈkoʊtʃwɜːrk/
KK: /ˈkoʊtʃwɜrk/
The outer structure or body of a vehicle, especially a car, that is built to hold passengers and cargo.
The coachwork of the vintage car was beautifully restored to its original condition.
Coachwork → The word is formed from "coach" (from Old French *coche*, meaning a large, wheeled vehicle) and "work" (from Old English *wyrcan*, meaning to make or do). Together, they refer to the construction or craftsmanship involved in making vehicles, particularly carriages.
Think of a 'large vehicle' ('coach') being 'made' ('work') — that's how coachwork refers to the craftsmanship of vehicle construction.