A first car: a checklist for a buyer who does not yet know what to ask

A first purchase is almost always made on “something I like that fits the budget”. Both criteria are sensible, and neither says anything about what the car will cost a year from now.

Budget the year, not the price

The purchase price is one-off. The cost of ownership is monthly.

What a year contains:

1. Insurance and tax — entirely independent of mileage.
2. Fuel — on your real route, not the official figure.
3. Scheduled servicing — oil, filters, fluids.
4. Wear items — tyres, pads, battery.
5. A repair reserve — the one most often forgotten.

Practical tip: budget a reserve for the first year. A used car almost always needs spending on immediately, and that is not a sign of a bad purchase — it is the normal state of affairs.

What to avoid as a first car

Complex or rare machinery. Air suspension, two-litre turbocharged direct-injection engines, dual-clutch gearboxes — all of it works fine given regular, expensive servicing.

A modified car. Lowered suspension, non-standard wheels, a remap — three separate sources of future problems; covered in the modification and electronics article.

A diesel for short urban trips — covered in the diesel versus petrol article.

The cheapest example of a model. It is cheaper for a reason, and the saving is usually smaller than the repair ahead.

The inspection order

1. Paperwork — the keeper, the number of owners, any finance.
2. Service history — covered in its own article.
3. Bodywork in daylight — panel gaps, shade differences, sills and arches.
4. Interior — control wear against the odometer.
5. A cold start — mandatory; ask them not to warm it before you arrive.
6. A test drive — braking, acceleration, straight steering, noises.
7. Diagnostics — codes and monitors.
8. A ramp — an independent look at the running gear.

What diagnostics gives you at that moment

The cheapest part of the inspection and the most informative per minute.

Codes across every system — including those that light no lamp.

Readiness monitors — all reset means codes were cleared before the viewing; covered in the readiness monitors article.

Freeze frames — they may hold the mileage at the time of an old fault; a mismatch settles the question.

Live data while it warms — temperature, trims, misfire counters.

The full protocol is in the used car inspection article.

Three red flags

The seller will not allow a scan or hurries you along. The strongest signal there is.

The car is warm when you arrive — a hidden cold start.

Perfect paperwork on an imperfect car — believe the metal.

In short

• Budget the cost of a year, not the purchase price.
• A first-year repair reserve is normal, not pessimism.
• Complex machinery and modifications are poor first cars.
• A cold start and a scan are the two things never to skip.
• Refusing a scan is already the answer.

Download the app — codes, monitors, and freeze frames are read with an ELM327 adapter over Bluetooth SPP on Android, right at the viewing.