What is Siemens C651?
{{Infobox train|name=Siemens C651 | line = north south | line2 = east west |image=EW8 Paya Lebar C651 Train at Platform.jpg|imagesize=250px|caption=A Siemens C651 train approaching [[Paya Lebar MRT station]]. {{image array|perrow=2|width=180|height=180 | image1 = Siemens C651 2231.jpg| caption1 = Inside the centre motor car of an unrefurbished Siemens C651 train. | image2 =| caption2 = A refurbished Train set 217/218 }}|service=2 May 1995 - 30 September 2024|manufacturer=[[Siemens|Siemens AG]]|Manufacturer=[[Siemens|Siemens AG]]|assembly=[[Vienna, Austria]]|yearconstruction=1993–1994|refurbishment=Singapore Rail Engineering<br>2016–2018|Refurbishment=Singapore Rail Engineering<br>2016–2018|numberbuilt=114 Vehicles (19 Trainsets)|formation=6 per trainset<br />DT–M1–M2–M2–M1–DT|Formation=6 per trainset<br />DT–M1–M2–M2–M1–DT|fleetnumbers=201/202 ~ 237/238|capacity=1920 passengers<br>372/336 seats|Capacity=1920 passengers<br>372/336 seats|operator=[[SMRT Trains]] ([[SMRT Corporation]])|Operator=[[SMRT Trains]] ([[SMRT Corporation]])|depots=[[Bishan Depot|Bishan]] <br> [[Changi Depot|Changi]] <br> [[Tuas Depot|Tuas]] <br> [[Ulu Pandan Depot|Ulu Pandan]] <br> [[East Coast Integrated Depot|East Coast]] (Future)|Depots=[[Bishan Depot|Bishan]] <br> [[Changi Depot|Changi]] <br> [[Tuas Depot|Tuas]] <br> [[Ulu Pandan Depot|Ulu Pandan]] <br> [[East Coast Integrated Depot|East Coast]] (Future)|lines={{rint|sg|ew}} [[East West MRT Line|East West Line]]<br>{{rint|sg|ns}} [[North South MRT Line|North South Line]]|CarBody=Aluminium-alloy double-skinned construction|carbody=Aluminium-alloy double-skinned construction|CarLength={{convert|23|m|ftin|frac=8|abbr=on}}|carlength={{convert|23|m|ftin|frac=8|abbr=on}}|width={{convert|3.2|m|ftin|frac=8|abbr=on}}|height={{convert|3.7|m|ftin|frac=8|abbr=on}}|doors={{convert|1450|mm|in|frac=16|abbr=on}}, 8 per car|MaxSpeed={{convert|90|km/h|mph|abbr=on}} (design)<br />{{convert|80|km/h|mph|abbr=on}} (service)|maxspeed={{convert|90|km/h|mph|abbr=on}} (design)<br />{{convert|80|km/h|mph|a