隨著近年來經濟發展及生活水準的提升，現代人擁有汽車的能力大幅提高。在汽車深入人們生活中的現在，汽車已不僅止扮演日常通勤代步的角色，更得因應人們對休閒娛樂需求的增加，展現出更彈性的空間使用及更舒適的乘坐環境。在今日汽車外觀設計越來越個性化、強調以不同族群為訴求進行造型設計時，卻鮮少有人提出以內在的乘車情緒營造為賣點。
當人停留在車內時間增加的同時，所產生的情緒種類與強度是否也會增加，車與人之間是因哪些因素而迸發出情緒火花將是本研究欲探討的方向之一。若乘車者希望藉由自主的控制來產生出特定的情緒，是否可藉由某種對應關係來達到目的。對此本研究的目的係由乘車者在車內不同的視線高低為切入點，探討在不同乘車情境下，視線高度與各情緒間起伏的相關性，進而達到藉由控制乘坐高度來調整情緒的變化。
本研究將情緒語彙經過問卷篩選出20組適合乘車狀態的情緒語彙(正向情緒9個、負向情緒11個)，使用九階李克尺度製成情緒量表，針對不同乘車高度、速度及行車區域組合進行實驗，並以攜帶式眼跡追蹤儀記錄受測者觀看路況的狀況。本研究利用RANOVA重複測量變異數分析，針對實驗數據進行分析。
研究結果發現：(1)乘車後正向情緒較未搭車前呈現負變化，且與乘車視線高度、行車速度及行車區域有相對應關係；(2)乘車後負向情緒較未乘車前呈現正向變化，且與乘車視線高度、行車速度及行車區域有相對應關係；(3)各類情緒對乘車視線高度、行車速度及行車區域皆有相對應關係，可藉由乘車高度的變化來調整各情緒感受的強弱，以做為乘車者在調整乘車情緒、設計者對汽車乘車感受定義時的參考準則。

This research intend to find out the factors of emotional impact between cars and humans. Is there exist some kind of relationship to affect passengers’ emotion? To realize the relationship between height of vision and emotion, this research make the point with different heights of passengers in the car, and try to adjust the variance of emotion by regulate the height.
20 emotional phrases which are suitable for describing states of car driving, were obtained by questionnaires(9 positive and 11 negative phrases). The experiment is conducted with 9-point likert scale towards combinations of different driving conditions including height, speed and city areas. The data is measured using Mobile Eye-Tracker, and then analyzed with RANOVA(RGLM's ANOVA).
The result of this research finds out: A. The emotion of positive getting negative growth after get into the car, and it also relate with the height of vision, the speed of the car, and the area to move. B. The emotion of negative getting positive growth after get into the car, and it also relate with the height of vision, the speed of the car, and the area to move. C. The feeling of passengers could be adjusted by regulate the height of seat.

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