i think you will in conclusion get the loan- the final outcome is a yes
the sun, your fathers significator is indeed in the 8th house of other peoples money, applying to a trine to your significator jupiter, both planets are strong- in their own sign with the moon applying to both of you by trine, first the moon trines the sun (your father helps by becoming your joint applicant) and then the moon trines jupiter (you, now get the loan and car)
drive safe!