The **maximum speed** allowed for an **adaptable mixed vehicle** on a **motorway** is **100 km/h**. This is because, according to generic speed regulations, adaptable mixed vehicles, along with buses and vehicles derived from passenger cars, have a speed limit of 100 km/h on motorways and expressways.


It is important to remember that this limit is specific to motorways and expressways, and it may vary on other types of roads. For example, on roads, the maximum speed for these vehicles is 90 km/h.