W               
                        
W       Watt                                   瓦特
W       Weight                                 重量
W       Width                                  寬度
W       Work                                   功,工作
W.G.    Worm Gear                              蝸輪傳動
W.P.    Waterproof                             防水的
W.P.    Working Pressure                       工作壓力
W       With                                   使用, 有,附
W/O     Without                                未用,無, 沒有
W/S     Windshield                             風窗,風擋
W/Shield        Windshield                     擋風玻璃
W/W     With Winch                             帶絞盤
WAC     Wide Open Throttle A/C Cutoff          節氣門全開A/C切斷
Warn    Warning                                警示
WAT.JACK        Water Jacket                   水套
WB      Wheel Base                             軸距
WC      With Care                              小心!(貨運包裝標誌)
WCLD    Water-Cooled                           水冷式
Wdo     Window                                 車窗
WH      Wheel House                            車輪罩
WH      Wheel                                  車輪,飛輪
WH      Wheeled                                輪式的
WHT     White                                  白色
Wip     Wiper                                  雨刷
WKR     Wrecker                                搶救車
WL      Waterl Line                            (車輛浮渡)水線
WM      White Metal                            巴式合金
WMI     World Manufacturer Indentifier         世界車輛製造廠識別
WN      Winch                                  絞盤
WO/EGR  Without EGR                            無廢氣再迴圈
WO/PTO  Without Power Takeoff                  不帶功率輸出
WO/W    Without Winch                          不帶絞盤
WOC     Weight of Car                          車重
WOG     Water-Oil-Gas                          水油混合氣
WOL     Whole of Life                          全部壽命
WOT     Wide Open Throttle                     節氣門全開
WPP     Water Proof Packing                    防水填料
WS      Windshield                             擋風玻璃
WS      Wind Speed                             風速
Wshr    Washer                                 橡皮圈,清洗器
WSIR    Webbing Sensitive Inertia Reel         全帶倦縮裝置
WT      Warming Tag                            警告標誌
WU-OC   Warm Up Oxidation Catalytic Convertor  暖車氧化觸媒轉換器
WU-TWC  Warm Up Three-Way Catalytic Convertor  暖車三元觸媒轉換器