This is the 14480th most frequent German word.
kostspielig
Costly; expensive.
Here, 'kostspielig' describes the monetary cost, emphasizing that the object (the car) requires a significant financial outlay.
Das neue Auto ist sehr kostspielig.
The new car is very expensive.
In this context, 'kostspielig' refers to the figurative cost, implying the mistake required extra resources such as money or time.
Ein kostspieliger Fehler im Projekt führte zu Verzögerungen.
An expensive mistake in the project led to delays.
In this case, 'kostspielig' is describing the high price associated with the journey, indicating it was luxurious or high-end.