2 photos from Wikimedia Commons · credits & licences
- 1. RER NG en essai dans les ateliers de la SNCF: Le cheminots· CC BY-SA 4.0
- 2. RER NG 009M: Adnane· CC BY-SA 4.0
what is it?
The RER NG (French: RER Nouvelle Génération, lit. 'RER New Generation'), also known as the X'Trapolis Cityduplex and classified as Class Z 58000 and Class Z 58500, is a double-deck, dual-voltage electric multiple unit trainset operating on line D and line E of the Réseau Express Régional (RER), a hybrid suburban commuter and rapid transit system serving Paris and its Île-de-France suburbs. The trainsets entered service in November 2023 on line E, and in December 2024 on line D. The trainsets are manufactured by a consortium of French company Alstom and Canadian company Bombardier Transportation. The RER NG is part of Alstom's X'Trapolis Duplex platform and is a development of previous double-deck trainsets built by the consortium, including the Z 2N, MI 2N, and MI 09 series.
who runs it
base stats
Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.
fun facts
- First built 3 years ago, in 2023.
- Top speed is 1.1× a car on the Dutch motorway (130 km/h).
- 5 MW is about 59 family cars (~85 kW each) flat out.
- 112 m long: about 25 cars parked nose to tail.
- Seats 1,861: 37 full city buses (~50 seats each).
multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.
spec sheet
- built
- 2023
- in service from
- 2023
- status
- in service
- number built
- —
- kind
- Electric multiple unit
- traction
- electric
- origin
- 🇫🇷 France
- builders
- Alstom, Bombardier
- operators
- Société nationale des chemins de fer français
- top speed
- 140 km/h
- power
- 5 MW
- gauge
- 1,435 mm standard gauge
- electric system
- Overhead line:, 3, 3
- formation
- 6 cars per trainset (Z 58000), 7 cars per trainset (Z 58500)
- length
- 112 m
- capacity
- 1,861 passengers
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q19945232, Wikipedia: RER NG (CC BY-SA 4.0).Updated 2026-10-25.