Allegro was the brand name of a now defunct high-speed train service, owned by Karelian Trains as a joint venture between the Finnish VR Group and the Russian railway company Russian Railways and operated by Class Sm6 trains, between Helsinki, Finland, and St. Petersburg, Russia from 2010 to 2022.

The Sm6 is a class of high-speed tilting electric multiple unit trainsets built by Alstom. A total of four trainsets were originally built for the now-defunct Allegro train service operated by Karelian Trains, a joint venture between Russian Railways (RZhD) and VR Group (Finnish Railways).

2023年12月14日 · The trains known as Allegro, or Sm6 units, have been owned by a joint venture between VR and Russian Railways. The Russian owner has repeatedly neglected its financial obligations towards the joint venture. VR has redeemed the joint venture's loans and through the right of pledge taken possession of the trains today, December 14th.

2025年3月11日 · 近日，芬铁表示更换为经典白绿涂装的Sm6将于年底重新上线国内区间，服务名称为Pendolino Plus（用于区分由Sm3担当的Pendolino高速服务）

2024年11月5日 · Unit 7503 7053 is the first of VR's Sm6 trains to be towed from Helsinki to Oulu as part of the program to convert them for use in domestic traffic in Finland. The old Allegro markings have been removed. We'll see what this unit looks like when it returns from Oulu!

2023年12月19日 · FINLAND: National operator VR is to return to traffic four Alstom Sm6 trainsets that were used on the Helsinki – St Petersburg Allegro service until it ceased operating following Russia’s full-scale invasion of Ukraine. The seven-car dual-voltage trainsets were operated by the Karelian Trains 50:50 joint ...

Deutsch: VR-Baureihe Sm6, Allegro (Zug) VR Sm6 class of electric multiple units operated by the VR Group. Upload media: Instance of ... Media in category "Karelian Trains Class Sm6" The following 80 files are in this category, out of 80 total. "Allegro" is held platform, "Ozerki".JPG 1,280 × …

The Sm6 appears similar to VR's earlier Sm3 Pendolino series, but is based on the fourth generation 'Pendolino Nuovo' or 'New Pendolino' designs. It runs now four times daily between Helsinki (Finland) and St.Petersburg (Russia)

The trains known as Allegro, or Sm6 units, have been owned by a joint venture between VR and Russian Railways. The Russian owner has repeatedly neglected its financial obligations towards the joint venture. VR redeemed the joint venture's loans and through the right of pledge took possession of the trains on December 14th.

SM6, Sm6, sM6 or sm6 stands for: VR Class Sm6, a type of train formerly used on the Allegro service between Helsinki and Saint Petersburg; RIM-174 Standard ERAM, a surface-to-air naval missile; SM6 postcode area, the Sutton postcode area covering Wallington, Beddington, Hackbridge, Roundshaw and South Beddington; Renault Talisman`s Korean name