# Advertising finance, price and emissions correctly
A £16.99-per-month iPhone ad would never survive without the total cost printed nearby. Yet car finance promotions get this wrong constantly. In 2023 the UK regulator publicly named dealers whose "0% APR" and PCP ads buried the deposit, the final payment, or the mileage cap. One missing line can turn a legal ad into an unfair, and expensive, mistake.
This lesson builds a compliant car finance ad from a blank page, then bolts on the emissions figures that OEM and dealer marketing routinely botch.
Before writing a single line of ad copy, know who is watching.
Finance advertising (credit).
General ad standards (truthfulness, fairness).
Emissions and fuel economy claims.
Jargon check: APR is the Annual Percentage Rate, the yearly cost of credit including interest and mandatory fees, expressed as a percentage. It lets buyers compare finance deals on a like-for-like basis.
PCP stands for Personal Contract Purchase, the dominant way cars are financed in the UK and common across Europe. The customer pays a deposit, then monthly payments covering only the car's expected *depreciation*, not its full price. At the end they either pay a large final lump sum (the "balloon payment") to own the car, hand it back, or roll into a new deal.
Two PCP features drive the compliance risk:
When an ad mentions any of these "trigger" terms: an interest rate, "0% APR", a monthly figure, a deposit, or the word "finance", UK CONC rules require a representative example. This is a standardised block of figures showing what a typical customer would actually pay.
The representative APR must be the rate that at least 51% of accepted customers will get or better. You cannot advertise a headline rate only a handful qualify for.
A CONC-compliant representative example for a PCP typically contains:
Note the two "totals" a buyer needs: total charge for credit (what the finance costs on top) and total amount payable (everything, including deposit and final payment).
The US equivalent under Reg Z is narrower but strict: if an ad states a rate or payment amount, it must also disclose the down payment, terms of repayment, and the APR, with the APR given prominence.
These numbers are invented for teaching and are not a real offer.
Assume:
Total amount payable:
Deposit £3,000
48 x £299 £14,352
Final payment £11,500
Option-to-purchase fee £10
-----------------------------------
Total amount payable £28,862Wait: total payable (£28,862) is *below* the cash price plus expected charges here only because these are illustrative figures. In a real ad the total payable normally exceeds the cash price by the total charge for credit. The teaching point stands: you must show the arithmetic buyers cannot do in their heads. A monthly payment alone (£299) tells them almost nothing about the £11,500 balloon waiting at the end.
"0% APR" is legal only if there genuinely is no charge for credit and no hidden loading of the cash price. Two traps:
1. Deposit contribution swaps. If the customer forfeits a discount by taking 0% finance, the ASA has ruled such ads misleading when the true cost of the "free" credit is baked into a higher price.
2. Prominence. "0% APR" in 48-point font with the representative example in tiny grey text fails the CAP Code requirement that qualifications be clear and legible.
Rule of thumb: the representative example should sit near the trigger claim, in readable type, on the same screen or page. On social video, that means the figures must be legible for long enough to read, not flashed for one frame.
Marketing a specific model in the UK or EU means you must show its official CO2 emissions and fuel consumption (or, for EVs, electric range and consumption) based on WLTP.
Common failures:
For plug-in hybrids (PHEVs), the combined CO2 and fuel figures depend heavily on how the test weights electric driving. Marketers must use the official certified figure for the exact variant shown, not a favourable stablemate.
The UK guidance sits with the ASA and reflects consumer-protection law; the EU framework flows from vehicle labelling rules. For a plain overview of WLTP, the European Commission's emissions testing pages are a reliable free reference.
Fair-treatment principle underneath all this: the FCA's Consumer Duty (in force since 2023) requires firms to avoid foreseeable harm and give information customers can understand. An ad that is technically complete but genuinely confusing can still breach the Duty.
Knowledge check
1. The lesson opens by comparing a car finance ad to an iPhone ad that shows the total cost nearby. What underlying compliance principle does this comparison illustrate?
2. A UK dealer wants to advertise a PCP deal and is unsure which regulator's rulebook governs the finance element of the ad. Which reasoning correctly identifies the applicable framework?
3. Why does APR exist as a required disclosure rather than simply advertising the interest rate alone?
4. Select ALL correct answers about the three regulatory layers a car finance ad must operate within.
Select all the correct answers.
5. Select ALL correct answers describing why a single missing line in a car finance ad can be a costly compliance failure.
Select all the correct answers.
Run every finance ad through this before publishing. Treat it as a gate, not a suggestion.
1. Trigger check. Does the ad mention a rate, payment, deposit or "finance"? If yes, a representative example is required.
2. Representative APR test. Can you evidence that 51%+ of accepted customers get this rate or better? Keep the data.
3. Totals present. Total amount payable AND optional final payment both shown.
4. Mileage terms. Allowance and excess-mile charge stated.
5. Prominence. Example legible, near the headline claim, readable duration on video.
6. 0% honesty. No hidden price loading or forfeited discount.
7. Emissions. Correct WLTP CO2, consumption or range for the exact variant shown, labelled as WLTP.
8. Expiry and eligibility. Offer end date and any age or status conditions stated.
9. Regulated-firm status. Correct FCA authorisation statement for the advertiser.
10. Sign-off. Named compliance approver and dated record retained.
Point 10 matters practically: when the ASA or FCA queries an ad, the first request is your evidence file. No file, no defence.
The temptation is to hand the small print to legal and keep the creative "clean". That backfires. The best automotive marketers design the layout *around* the mandatory disclosures from the first sketch, so the representative example and WLTP figures feel native, not bolted on. A pulled ad costs media spend, campaign momentum, and brand trust. Compliance built in at the concept stage is cheaper than a takedown.