1. 齒輪   gear   accelerator   seat belt   tire, tyre   Hint Half-n-half Clue   2. 刹車燈   brake lights   brake   battery   seat belt   Half-n-half Clue   3. 引擎   brake   horn   engine   headlight   Half-n-half Clue   4. 閘   brake   headlight   gear   engine   Half-n-half Clue   5. 加速器   accelerator   tire, tyre   dashboard   gear   Half-n-half Clue   6. 手煞車   steering wheel   handbrake   accelerator   speedometer   Half-n-half Clue   7. 安全帶   seat belt   headlight   gear   brake lights   Half-n-half Clue