In what unit of measurement are under-hood diagram measurements typically displayed?

Under-hood diagram measurements are typically displayed in millimeters. This unit of measurement is precise, making it suitable for detailed engineering and automotive applications where small dimensions need to be conveyed accurately. The use of millimeters allows appraisers and technicians to have a clearer understanding of the spatial arrangement of components under the hood, facilitating precise repairs and component replacements.

Millimeters are often preferred in technical fields, such as automotive engineering, because they allow for a more granular level of detail compared to centimeters and inches. While inches may be used in some contexts, millimeters present a greater resolution which is particularly important when dealing with the compact spaces found in engine compartments.