The maximum fine for driving without insurance can be unlimited, as the courts decide the exact amount based on the seriousness of the case. Typically, a fixed penalty fine starts at £300 with six penalty points on the driving licence, but if the case goes to court, the fine can be unrestricted and there could also be a driving disqualification. Additionally, the police can seize or even destroy the uninsured vehicle.

In some other countries like the Netherlands, fines for uninsured driving are fixed amounts, for example, €500 from the RDW and €700 from the police, but these are separate from the UK context mentioned here.

Thus, in the UK, there is no legal maximum fine for driving without insurance, with fines potentially being unlimited depending on court decisions.