Referring to you car as your wheels is a synecdoche.
An example of a synecdoche is referring to a vehicle as "wheels," one policeman as "the police," cola as "Coke" and credit cards as "plastic."
Origin of synecdocheLME, altered (infl. by L) from synodoche from Medieval Latin sinodoche, for Classical Latin synecdoche from Classical Greek synekdoch?, literally , a receiving together from synekdechesthai, to receive together from syn-, together + ekdechesthai, to receive from ek-, from + dechesthai, to receive from Indo-European base an unverified form de?- from source decent
Origin of synecdocheMiddle English synodoches from Medieval Latin synodoche alteration of Latin synecdochē from Greek sunekdokhē from sunekdekhesthai to take on a share of sun- syn- ekdekhesthai to understand ( ek- out of ; see eghs in Indo-European roots.) ( dekhesthai to take ; see dek- in Indo-European roots.)
- syn′ec·doch′ic syn′ec·doch′i·cal
- (rhetoric) A figure of speech that uses the name of a part of something to represent the whole.
- (rhetoric) The use of this figure of speech; synecdochy.
From Latin synecdoche, from Ancient Greek ÏƒÏ…Î½ÎµÎºÎ´Î¿Ï‡Î® (sunekdokhe, “receiving together").