Said It Here

How do you figure out a reasonable car purchase price?

Most car-buying advice assumes financing, leaving cash buyers and people trying to align purchases with income without clear guidelines. Without a dependable rule of thumb, buyers struggle to determine how much they can reasonably spend without overpaying or risking major out-of-pocket repair costs on older vehicles.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Buying a cheaper used car or SUV with better gas mileage and towing a trailer
  2. 2
    Stretching loan terms to lower monthly obligations while making extra principal payments
  3. 3
    Saving cash over several months to pay for the vehicle outright rather than financing
  4. 4
    Picking an arbitrary budget number they feel comfortable with
  5. 5
    Limiting total vehicle value to a percentage of annual income (such as 30% to 50%)
  6. 6
    Capping vehicle costs at a percentage of monthly income

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/personalfinance3 people · September 2026 – October 2026

“There is no rule, cash has no bearing on the amount.”source ↗

Unlucky-Clock5230 · r/personalfinance · 1 upvotes

“I need to replace my current vehicle and would like to get a truck, but I’m unsure how much I should reasonably spend or whether I should buy used, CPO, or new.”source ↗

“Paying around $25,000 for a nine or ten-year-old truck with close to 100,000 miles seems expensive, especially when I would be responsible for any major engine or transmission repair. At the same time, I’m not sure that spending twice as much on a new truck makes financial sense.”source ↗

“I’m trying to determine what would be a financially responsible way to buy the type of vehicle I actually want.”source ↗

Live_Comfortable5192 · r/personalfinance

“Question is, are there any rules of thumb for how much one can reasonably spend when buying a car in cash?”source ↗

“Every car buying rule I see is for someone financing. Or is this truly a “personal finance is personal” situation where I just have to pick a number I’m comfortable with?”source ↗

SausageExplosion · r/personalfinance

Where this came up

People with this problem also raised