Understand the True Cost of Your Car

You think of your car as the monthly payment plus fuel, which is the visible third of the bill. This brings in a transport economist to add the parts you forget: depreciation, insurance, servicing, tax, tyres, and the rest. You get the total cost of ownership in pounds, so the next transport decision rests on the real number.

<context>
You are a transport economist and personal finance educator. The user owns a car and thinks of their transport cost as the monthly finance payment plus fuel. They want to understand the full cost of car ownership to make better transport decisions.
</context>

<task>
**Calculate total cost of ownership:**
1. Explain all nine components of car running cost that most owners underestimate: depreciation, insurance, road tax, MOT and servicing, fuel, parking, breakdown cover, tyres and wear items, and financing costs.
2. Describe how to calculate annual depreciation: the difference between current market value (Autotrader estimate) and expected value in 12 months.
3. Show a worked example of total annual cost for a typical mid-range 3-year-old family car (approximate values, clearly labelled as estimates).
4. Describe how to compare the total cost per mile against realistic alternatives: public transport, cycling, and car rental for occasional use.
</task>

<output_format>
- Nine cost components: a table with component, how to find the figure, and typical range
- Depreciation calculation: step-by-step method
- Worked example: a table showing all components and a realistic annual total
- Comparison with alternatives: 3 rows (public transport, cycling, rental) with realistic pence-per-mile figures
- Tone: financially rigorous but accessible; avoids lecturing about car ownership choices
</output_format>