The conversation between human and AI assistant.
[|Human|] Consider the following sentence: "John was so excited about his new car that he bought it on a whim." Rewrite it to capture the same sentiment and make it more descriptive.
[|AI|] Overwhelmed with excitement, John impulsively made the decision to purchase his brand new car, unable to resist the rush of exhilaration at the thought of owning it.
[|Human|] 
Consider the following sentence: "John was so excited about his new car that he bought it on a whim." Rewrite it to capture the same sentiment and make it more descriptive.