In 2008, Bombardier presented the "Dosto 2010" future family of double-deck trains for the
German market. For international sales they were branded as
Bombardier TWINDEXX with a "Vario" concept (then called
TWINDEXX Vario) that allows these trains to be built for
regional or
intercity connections with a design speed of and an operational speed of up to .
Deutsche Bahn (DB) and other German operators currently operate 404 TWINDEXX Vario carriages,
classified as
DBAG Class 445/446, which entered service in 2017 after a delay of three years, replacing many locomotive-hauled rakes.
Israel Railways has also ordered 443 TWINDEXX Vario carriages between 2010 and 2019 to support its expanding
rail network, the last of which was delivered in December 2021. The
high-speed rail versions are branded
TWINDEXX Express, designed for . A
tilting EMU variant of the Twindexx with an operational speed of up to is developed for the
Swiss Federal Railways (SBB),
classified as
SBB RAB(D)e 502, nicknamed
FV-Dosto and informally called
TWINDEXX Swiss Express. Orders have been placed in the range of a few hundred coaches of the different variants with their initial delivery originally to be around 2013, then delayed to 2015–2017 and eventually 2018–2022, depending on the variant. These delays have been attributed to the need to redesign the trains to properly comply with
Swiss disability access legislation after a lawsuit was filed against Bombardier and SBB by two Swiss disability-rights organisations at the
Federal Administrative Court of Switzerland in 2012, as well as problems with the
composting toilet tanks and the tilting mechanisms. In 2022, SBB decided to permanently discontinue the use of the tilting mechanism on their FV-Dosto trains. The
National Railway Company of Belgium (NMBS/SNCB) has similarly ordered TWINDEXX-derived intercity trains designated as
M7 in 2018, constructed at the former
BN factory at
Bruges, which entered service in January 2020. In 2007,
Koleje Mazowieckie of Poland signed a contract for the delivery of 37 Twindexx Vario wagons (11 steering and 26 trailing wagons). The centre wagons were delivered in August and the steering wagons in December 2008. Initially, the wagons were pulled by
EU07 locomotives. The wagons are currently operated by Koleje Mazowieckie together with
TRAXX P160DC and
Pesa Gama locomotives, sometimes also in
multiple working with
Pesa Sundeck bilevel coaches. File:SBB_Re_420_WAKO-Testfahrt.jpg|test run of tilting double-deck coach pulled by a regular train File:J36 201 Bf Nürnberg Hbf, 445 083.jpg|DBAG Class 445/446 at
Nürnberg Hbf (June 2019) File:SBB RABDe 502 009.jpg|SBB RABDe 502 tilting double-deck coach
TWINDEXX Swiss Express File:Bombardier push-pull Warszawa.jpg|Koleje Mazowieckie Twindexx Vario control car ==See also==