Why the advertised monthly payment is not the car budget
A finance or lease payment covers only one part of the cash leaving your account. Taxes, fees, trade-in debt, insurance, energy, servicing and repairs can materially change whether the vehicle remains affordable.
AutoPrisme separates affordability, monthly cash cost and longer-term economic comparisons. That makes each result easier to understand and prevents resale value or irregular repairs from disappearing inside one unexplained figure.
Measure electricity with the EV charging cost calculator and model resale value with the car depreciation calculator.
Before buying a used vehicle, keep the inspection and document checks together with the interactive used-car checklist.
The best order for comparing a car
- Set an all-in monthly ceiling with the affordability calculator.
- Build the complete purchase and monthly costs from written quotes.
- Check trade-in equity before subtracting it from the next vehicle.
- Model energy cost and depreciation with realistic assumptions.
- Compare finance or powertrain options over the same period.
Frequently asked questions
Are the AutoPrisme calculators free?
Yes. No account is required. The calculators are free and your latest inputs are stored locally in your browser when that storage is available.
Which calculator should I use first?
Start with car affordability to set an all-in ceiling. Then calculate the complete monthly cost of the vehicle and use the finance or powertrain comparison when relevant.
Can I use pounds or dollars?
Yes. Multi-market calculators display USD, CAD, GBP, AUD or EUR. Changing the currency changes the label only, so enter every figure in one consistent currency.