ČD Class 640 (RegioPanter Diesel)

Updated: August 2026 – A modern regional multiple unit from the Panter family by Škoda, run under class number 640: this page explains what’s behind the name, how the Czech classification system sorts traction types, and how you can settle in two seconds in the field whether a vehicle is electric or runs on an internal combustion engine.

What’s behind Class 640?

Class 640 belongs to the Panter family of Škoda Transportation – the building-block platform from which the Czech manufacturer derives its modern regional multiple units. All Panter versions share the same basic architecture: a fully walk-through articulated unit with lowered boarding areas, cabs at both ends, and no separate locomotive.

The three-digit number itself isn’t an abbreviation, but a pure sequence number in the Czech classification system. How this system is structured is the key to practically every Czech vehicle – and therefore the core of this page. The related version for electric regional services is described on the page about the RegioPanter of Class 440.

The Czech classification system: traction type at a glance

Since 1988, České dráhy and the other Czech railways have worked with a purely numerical system. It’s one of the tidiest in Europe, because the first digit already tells you the vehicle type.

Number range	Vehicle type	What you see on the vehicle
1xx to 3xx	Electric locomotives	Locomotive with pantograph, hauls coaching stock
4xx and 6xx	Electric railcars and multiple units	Multiple unit with pantograph, no separate locomotive
7xx	Diesel locomotives	Locomotive with exhaust and cooling equipment
8xx	Diesel railcars	Railcar with no pantograph, engine noise
0xx and 9xx	Trailers and driving trailers	No traction, some with a cab

Before 1988, there were letter designations – for example M 152 for a railcar. Many older vehicles are still known under both systems to this day, which is why you frequently come across double designations in forums. The general approach to identification is explained in the guide to identifying classes.

Determining traction in the field

These four steps reliably establish what a railcar runs on – no prior knowledge of the specific class required.

Rebuild programmes: a Czech tradition

One hallmark of the Czech vehicle fleet is the reuse of existing vehicles. Instead of scrapping older railcars, they were converted into modernised units with new bodywork, new technology and sometimes new class numbers – known, for example, under the name “Regionova”. The principle pays off because the load-bearing part of the vehicle often lasts considerably longer than the engine, controls and interior fit-out.

For observers, that means: two vehicles can look completely different on the outside and still share the same origin – or, conversely, look similar and be technically worlds apart. How much such rebuilds can change the appearance is shown on the pages about Class 814 Regionova and its base vehicle, Class 810.

Spotting, documentation and safety

Regional railcars are photographically unspectacular but documentarily rewarding: they often stop, stand quietly at the platform, and carry clearly readable markings.

• Take the markings with you. The full vehicle number with country code 54 confirms registration in the Czech Republic.
• Add the train number. It matches the sighting to the diagram and makes it evaluable later.
• Choose a three-quarter view. Roughly 30 to 45 degrees shows the cab and side wall at once.
• Note the traction type. What you’ve seen and heard yourself is the most reliable detail when designations are inconsistent.

What the individual digits of the vehicle number mean is explained in the article on the UIC number and its check digit. How to build a logbook from that which is still usable years later is shown in the guide to the sighting logbook.

Nicknames: the third layer of designation

The Czech Republic has one of the liveliest nickname cultures in European railway operations. Vehicles there almost always carry a nickname from the enthusiast scene alongside the class number and product name – and it’s rarely arbitrary.

The origin of such names usually follows one of three patterns. Shape: a bulky double-deck train becomes a “CityElefant”, a vehicle with a distinctive silhouette gets a name from the animal kingdom, such as “Racek” – seagull. Function: modernised regional vehicles run under names like “Regionova”, which directly capture their role in local services. Everyday speech: for small railcars, the diminutive form is common, for example “Motoráček” – roughly “little railcar” in English.

For you, that has three practical consequences:

• Research runs via the name. In forums, photo archives and communities, you often find more material under the nickname than under the plain class number.
• Documentation runs via the number. Nicknames can be ambiguous, cover whole vehicle families, and don’t reflect modernisation status.
• Names migrate. A nickname originally coined for one type is occasionally carried over to successors or rebuilds. Without the number, you won’t know later exactly what was meant.

The same caution applies to manufacturer product names. They describe a vehicle family and a market segment, not one specific vehicle. Two trains with the same family name can differ considerably in length, fittings and technical equipment.

Anyone who has internalised this gets around the Czech Republic considerably faster than with body-shape knowledge alone. Because here, more than elsewhere, it holds true: the country describes its vehicles on several levels at once – and expects you to be able to tell them apart.

Common mix-ups

Conclusion

Class 640 is a good excuse to properly learn the Czech system: the first digit reveals the vehicle type, the roof reveals the traction, and the full vehicle number reveals the registration. Where product names, nicknames and class numbers diverge, your own observation of the vehicle always wins.