I-EF-4 ingumkhiqizo ohamba phambili ku-JCT. Isetshenziswa kabanzi endaweni yokukhangisa. I-Ef-4 ku-JCT ifana ncamashi ne-BMW Mini, ihlakaniphile kodwa iwusizo futhi idumile. Amakhasimende asebenzisa i-trailer ye-LED yeselula ye-EF-4 ukukhuthaza imicimbi yezemidlalo, ukukhuthaza ukukhushulwa kwezimoto, kanye nokukhuthaza imikhiqizo emisha.

Amakhasimende avela eNew Zealand aklama i-trailer ngendlela yawo. Bavikela uhlaka ngebhokisi elikhulu. Ihlukile ezikhangisweni zendabuko, i-trailer ye-LED yeselula ingabonisa amavidiyo, avumelana nezimo futhi akhangayo. Kuzuzisa kakhulu. Sicela ungangabazi ukuxhumana nathi ukuze uthole imininingwane eyengeziwe.