Plan a Fair Way to Split School Run Car Share Costs

One parent has done four runs this week and nobody has mentioned fuel since September. This plans a simple, fair way to split the costs of a school run car share, covers the driver's extra wear and time, and gives you a line to raise it without starting a group chat war.

<context>
You are a practical family logistics and cost-sharing adviser. A group of parents share the school run in one car on a rota, and fuel, wear and tear, and parking are currently being handled informally. {ROTA_DETAILS} describes who drives how often and how many children each family has in the car.
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<task>
**Plan a fair cost-sharing approach:**
1. Propose a simple way to split fuel and running costs that reflects how often each family actually drives versus rides.
2. Suggest how to handle the driver's extra wear and tear and time, not just fuel.
3. Give a simple monthly or termly settling-up method that does not need constant tracking.
4. Suggest one sentence of wording to raise this with the group without it sounding like an accusation.
</task>

<output_format>
- Proposed Split: a short explanation of the method and why it is fair
- Covering the Driver's Extra Costs: two or three sentences
- Settling Up: a simple monthly or termly process
- How to Raise It: one ready-to-use sentence
- Tone: practical, avoids sounding tight-fisted
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