Why the Sticker Price Is the Wrong Starting Point

Most buyers negotiate hard on purchase price, then stop calculating. That's a costly habit. Over a five-year ownership period, the recurring costs — depreciation, fuel, insurance, servicing, taxes, and financing — routinely equal or exceed what you paid at the dealer. The purchase price is simply the entry fee.

This checklist is structured to help you build a complete, side-by-side cost comparison for any two vehicles you're weighing. Work through each category in order, use real numbers where you can find them, and estimate conservatively where you can't. The goal is a total five-year cost figure per vehicle — not a gut feeling.

For a broader view of recurring fees and taxes, the Insurance & Fees hub covers the structural costs that apply regardless of which vehicle you choose. And if you're comparing powertrains — gasoline, hybrid, or electric — the cost structure changes meaningfully; see our guide on powertrain and running costs before finalising your comparison.

Depreciation

Look up the expected five-year residual value for each vehicle using reputable valuation data sources, not the dealer's estimate. Must
Calculate the projected depreciation dollar amount: purchase price minus estimated resale value at your planned ownership horizon. Must
Note whether the vehicle is in its first or second model year — early production runs often depreciate faster due to buyer uncertainty. Should
Check whether a certified pre-owned version of the same model exists; CPO vehicles absorb the steepest depreciation drop before you own them. Nice to have

Financing Costs

Obtain your actual loan rate from a lender or credit union before visiting a dealer — this is your baseline for comparison. Must
Calculate total interest paid over your loan term for each vehicle using an amortization calculator. Must
Compare a 48-month versus 60-month term: longer terms lower monthly payments but increase total interest paid. Should

Fuel and Energy Costs

Find the EPA-rated combined fuel economy (mpg) or MPGe for each vehicle you're comparing. Must
Estimate your annual mileage and calculate annual fuel cost: (annual miles ÷ mpg) × your local average fuel price. Must
If comparing an EV or plug-in hybrid, calculate home charging cost using your electricity rate and the vehicle's efficiency rating. Must
Factor in public charging costs if your living situation limits home charging access — these vary significantly by region and network. Should

Insurance

Request actual insurance quotes for each specific vehicle — premiums vary by make, model, trim, and model year, not just vehicle category. Must
Confirm whether a used vehicle qualifies to drop comprehensive or collision coverage given its value — this can meaningfully reduce annual premium. Should
Ask your insurer how your driving history and annual mileage estimate affect the quoted rate. Nice to have

Maintenance and Repairs

Research the manufacturer's scheduled maintenance intervals and estimated service costs for each vehicle's first 60,000 miles. Must
Check whether the vehicle is still within any factory warranty or powertrain warranty period — and what it covers. Must
For used vehicles, obtain a pre-purchase inspection from an independent mechanic before committing. Must
Research tire replacement cost and expected interval — performance-oriented models often carry expensive, short-lived tires. Should

Taxes, Registration, and Fees

Calculate your state and local sales tax on the purchase price — on a $35,000 vehicle this can easily exceed $2,500. Must
Look up annual registration fee for each vehicle in your state; fees often scale with vehicle weight or value. Must
Check whether any federal or state EV tax credits apply to a vehicle you're considering — and confirm you meet the eligibility requirements before relying on them. Should

Tools You'll Need to Run the Numbers

You don't need specialist software, but a few resources will sharpen your estimates considerably. Gather these before working through the checklist.

Required

Amortization Calculator

Calculates total interest paid over a loan term so you can compare financing costs across vehicles and loan scenarios.

Required

EPA Fuel Economy Guide (fueleconomy.gov)

Provides official EPA fuel economy ratings and estimated annual fuel costs for vehicles sold in the US.

Required

Vehicle Valuation Service (e.g. Kelley Blue Book, Edmunds TMV)

Provides current market values and projected resale values to anchor your depreciation calculations.

Required

Insurance Quote Tool

Generates actual premium quotes for specific vehicles — essential because insurer pricing varies significantly by model and trim.

Optional

Vehicle History Report

Reveals accident history, title issues, and odometer records for used vehicles before committing to a purchase.

Optional

Spreadsheet (Excel or Google Sheets)

Organises all six cost categories side by side so you can generate a clean total five-year cost comparison.

Running the Full Comparison

Once you've gathered data across all six cost categories, add them up per vehicle over your expected ownership horizon — typically three to five years. A vehicle with a $4,000 lower purchase price can easily cost $6,000 more in total once depreciation, fuel, and insurance are included.

Dealer Add-Ons Inflate the Base Comparison

Documentation fees, dealer-installed accessories, paint protection packages, and extended service contracts can add $1,000–$3,000 to the transaction price before you notice. These costs don't appear in any depreciation or insurance estimate. Itemise every line on the buyer's order and remove anything you didn't explicitly request — you are not obligated to pay for pre-installed add-ons.

Buyers comparing new versus used options should also review hidden costs that catch used car buyers off guard, which details upfront fees and immediate repair risk that don't show up in depreciation curves. For help structuring your overall budget before you begin shopping, setting a car budget that accounts for more than the sticker price is a useful companion. And for a deep dive into depreciation specifically — the cost most buyers underestimate — see car depreciation and total ownership cost: the complete picture.

This article provides general financial information for educational purposes. It is not personalised financial or tax advice. Consult a qualified financial adviser or accountant for guidance specific to your situation.