Change economics
What does changing car really cost?
The sale price is not the cost of changing.
Start with exit value
Use the best evidence available for what the current car can actually achieve.
Choose a comparable replacement
Price a sensible substitute, not a dream upgrade.
Calculate the gap
Replacement price minus actual exit value is the key cash number.
Allow for first-year risk
A replacement can still need tyres, servicing or repairs soon after purchase.