為了應付不斷上升的客量需求，新加坡的巴士營運商不惜千方百計，引入載客量更高的巴士；新捷運於早年引進的"Super Bus"十二米雙層空調巴士，就是其中一個成功的例子。可是，在一些只適合單層巴士行走、乘客流量高的路線，雙層巴士便無用武之地了。有見及此，新捷運和其主要對手八達巴士，不約而同地在1996年分別向富豪及平治車廠購入掛接巴士；其中八達的平治O405G掛接巴士先於1996年3月投入服務，而新捷運的富豪B10M掛接巴士則緊隨其後，於同年4月底跟星洲市民見面。
新捷運富豪B10M掛接巴士全長19米，比旗下另一款平治O405G掛接巴士還要長1米多，堪稱"亞洲最長巴士"，可載客147人(座位54、企位93)。跟其他B10M兄弟一樣，全車的心臟——富豪THD102KF引擎，位於頭軸後面的空間，可輸出達245匹的馬力，緊接ZF4HP590波箱，驅動第二軸。值得一提的是，富豪B10M掛接巴士的第二軸為驅動軸，至於第三軸，廠方則提供兩個設計供買家選擇：第一個方案是可提供反方向附助轉向功能的第三軸，使巴士轉彎時的操縱性能更優異，但第三軸只可承受8噸的負荷；而第二個方案則是固定的尾擔，其優點是可承受達10.5噸的負荷；在權衡取捨下，新捷運採納了前者，而這個設計亦跟平治O405G掛接巴士不相同。
可惜，經過一連串試驗後，新捷運最終選取繼續購入更多雙層空調巴士，而第一輛富豪B10M掛接巴士——SBS998Y，也是車隊中的唯一，跟現時市面上逾百輛八達公司的掛接巴士，構成鮮明對比。SBS998Y曾長時間服務於290號路線，但隨著該路線的取消，現時SBS998Y多見於來往淡濱尼轉換站及勿洛轉換站的18號路線，更以新捷運的新標準色彩示人。
In order to meet the increasing passenger demand, bus operators in Singapore have tried hard to introduce buses with huge capacities: The introduction of 12m air-con double-decked "Super Bus" of SBS Transit is a remarkable success. Nevertheless, road conditions are sometimes so harsh that the allocation of double-deckers to certain highly demanded routes is not applicable. In this case, articulated buses could be one of the best solutions: SBS Transit and its major competitor, TIBS, brought in articulated buses in 1996. Mercedes Benz O405G first came to service with TIBS in March 1996, followed by SBS Transit's Volvo articulated B10M which started service in late April in the same year.
SBS Transit's articulated Volvo B10M, which is regarded as "Asia's Longest Bus", is 19m in length. It is capable of carrying 147 passengers, with 54 seating capacity and 93 standing capacity. The power is from a Volvo THD102KF engine, rated at 245bhp, posterior to the front axle. It is then transmitted through a ZF4HP590 gearbox to the second axle which drives both the tractor and trailer. It is worth noticing that there are two options for the third axle on the trailer: The first one is a steered trailer axle which is able to support 8 tonnes of load at maximum. It gives the best performance on steering. The second one is a rigid trailer axle, which means the load can be up to 10.5 tonnes at maximum. SBS Transit finally adopted the first option. Note that the location of axles of articulated Volvo B10M is different from that of MB O405G.
After a series of tests and practical services, SBS Transit finally decided to introduce more air-con double-deckers to strengthen its fleet. The first and the only articulated Volvo B10M of SBS Transit, SBS998Y, used to serve on Service 290 before its cancellation. It is now frequently seen on trunk route 18, which is a loop service between Tampines and Bedok Interchange. It has been painted in the new livery of SBS Transit since early 2003.
| Year of Introduction 投入服務年份 | Registration 登記編號 | Bodywork 車身 | Engine 引擎 | Gearbox 波箱 | Air-con 空調 |
| 1996 | SBS998Y | Duple 都普 | Volvo THD102KF | ZF4HP590 | Sutrak 超卓 |
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新捷運於1996年，開始試驗這部編號SBS998Y的富豪B10M掛接巴士；它的載客量和操控性能，跟一般12米雙層巴士無異。 拍攝地點：淡濱尼巴士轉換站 |
SBS988Y, an articulated Volvo B10M, entered service with SBS Transit in 1996 on testing basis. Its capacity and steering performance are similar to those of a 12m double-decker. Place: Tampines Bus Interchange |
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SBS998Y共安裝有兩副超卓空調機，分別為於前、後兩卡；請留意其車尾寫道：您正在"亞洲最長巴士"的後面。 拍攝地點：淡濱尼巴士轉換站 |
Two Sutrak air-conditioners have been installed - one on the tractor and one on the trailer. Please note the words on the rear part which read "You Are Travelling Behind Asia's Longest Bus". Place: Tampines Bus Interchange |