Why does Tom insist on switching cars with Gatsby when they go to the city?

Explanation:

Tom insists on switching cars with Gatsby when they go to the city due to a combination of curiosity, jealousy, and a desire to assert his dominance. As a wealthy and privileged individual, Tom is accustomed to having the finest possessions, including his own luxurious car. However, upon discovering Gatsby’s opulent yellow Rolls-Royce, Tom becomes envious of Gatsby’s newfound wealth and the attention it garners. The act of swapping cars allows Tom to experience the thrill of driving Gatsby’s impressive vehicle, satisfying his curiosity while also attempting to reclaim his sense of superiority over Gatsby.