The Ivolga (named after "Иволга" bird, e.g. Eurasian golden oriole), designation EG2Tv and EGE2Tv, is an electric multiple unit passenger train produced and manufactured by Tver Carriage Works (TVZ) for urban and commuter service.

The exterior and interior styling, however, was outsourced: TVZ ordered the design of the concept train to Integral Design and Development (Arina Design) (Barcelona, Spain). A natural scale mock-up was built by Integral Design and Development and presented in Russia in 2015.

Re-styling of Ivolga was also outsourced to Integral Design and Development (Arina Design) in 2017. First Ivolga 2.0 trainset was built in 2019.

Since November 2019, an upgraded Ivolga 1.0 trains have been serving Line D1 of Moscow Central Diameters.^[1]

In 2021, yet another iteration of the design was presented, EGE2Tv, named Ivolga 3.0, with increased to 160 km/h max speed and meant for traveling longer distances. Whilst still utilizing the 2.0 exterior, the interior was updated by the Russian 2050.lab studio. They were meant for the D3 line of Moscow's MCD system planned opened in August 2023. The first trainset was completed in 2022.

The next modification, Ivolga 4.0, is an urban variant with 3 doors per middle car. A trainset with eleven cars has 646 seats. The first trainset was built in 2023.^{[citation needed]}

Overall 41 EG2Tv and 34 EGE2Tv trains have been produced by June 2024, working on lines D1, D2 and D4 of MCD Moscow's metro-rail (high-capacity urban-rail) system as well as on express route Moscow – Usovo.

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  Ivolga 0.0 (EG2Tv) with original head
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  Ivolga 0.0 (EG2Tv) after modernization
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  Ivolga 1.0 (EG2Tv)
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  Ivolga 2.0 (EG2Tv)
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  Ivolga 3.0 (EGE2Tv)
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  Ivolga 1.0, head car (model 62-4497)
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  Ivolga 2.0, head car (model 62-4497)
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  Ivolga 1.0, motor car (model 62-4498)
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  Ivolga 1.0, trailer car (model 62-4499)

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  Driver cabin
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  Designated areas for bikes/scooters and wheelchairs inside control car of Ivolga-1.0.
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  Passenger door zone inside Ivolga-1.0.
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  Passenger door zone inside Ivolga 2.0.
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  Passenger rows and seats inside intermediate car of Ivolga-0.0.
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  Passenger rows of seats inside intermediate car of Ivolga-1.0.
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  Passenger seats and gangway inside intermediate car of Ivolga-2.0.
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  Toilet inside a control car.

• "Ivolga". Official public site. Transmashholding. Retrieved 2018-12-22.
• "EG2Tv «Ivolga»". Official site. OJSC «Tver Carriage Works». Archived from the original on 2019-12-09. Retrieved 2018-12-04.
• "Virtual tour in EG2Tv Ivolga". Official site. OJSC «Tver Carriage Works». Archived from the original on 2019-09-13. Retrieved 2018-12-04.
• Integral Design and Development (Arina Design): [1]

• Siemens Desiro
• Stadler FLIRT
• Alstom Coradia
• CAF Civity
• Bombardier Talent/Bombardier Talent 2/CAF Talent 3