Paid Advertising for Automotive — The Practitioner’s Playbook.

SectionThe honest reframe most paid agencies won't tell you

Generic paid agencies sell dealers a Performance Max campaign with no DMS integration, no per-stock retargeting, no FCA-compliant finance creative, no plate-change-window budget concentration, and no service-department-vs-sales separation. Then the dealer principal sees the wholesale margin tank for a quarter, the service department complaining their workshop diary is empty, and the sales floor running on the same six finance enquiries a week they had before the spend doubled.

Automotive paid is structurally different from e-commerce paid. The conversion event isn't a checkout; it's a test-drive booking, a finance enquiry, an MOT slot, or a service-job ticket — and each of those routes through a different department with different margin economics. The buyer's path from click to delivered car is 14–60 days for sales, same-day for MOT, two weeks for service. The Pinnacle / Keyloop / Drivex DMS holds the truth on attribution, and most agencies never touch it. And the FCA tightened motor-finance disclosure rules so far that any agency still writing finance ads without representative APR + example is exposing the dealer to regulatory action.

This playbook fixes the structure. Read it, run it yourself, or have us ship it on retainer. Same canon either way.

SectionThe eight-point audit we run on day one

Score your own paid account red / amber / green this week.

1. Per-VRM dynamic remarketing with vehicle-feed integration — Every car on the forecourt has its own VRM, photos, price and spec; that data should feed a dynamic remarketing audience so a buyer who viewed a 2022 A4 sees that exact A4 across Display, YouTube and Meta until it's sold. Most dealers are running generic "we sell cars" remarketing — a 4–6× efficiency loss vs vehicle-feed dynamic.
2. FCA-compliant finance creative + APR disclosure — Any ad mentioning monthly payment, deposit, PCP, HP or 0% must carry the representative APR and a representative example (cash price, term, total payable, optional final payment). Missing disclosure isn't just a creative issue; it's an FCA compliance breach. Audit every finance ad in the account, today.
3. Plate-change-window budget concentration (Mar/Sep peaks) — March and September drive 35–45% of new-car registrations between them. If your monthly ad budget is flat across the year, you're under-spending in the only two months that matter and over-spending the other ten. Concentrated bursts at plate-change peaks pull 2–3× the ROAS of flat spend.
4. Service department campaigns separated from sales — MOT, service, tyres, body shop and parts are different audiences, different intent levels and different cost-per-acquisition economics from new and used sales. Most accounts run them in a single account with one budget; the right approach is a separate campaign hierarchy per department with department-level CPA targets.
5. Offline conversion tracking enquiry → test-drive → sale → finance attached — DMS pushes the truth on what actually closed and at what gross. Without offline conversion uploads from Pinnacle / Keyloop / Drivex back to Google + Meta, the platforms optimise on enquiry volume — which means low-quality leads. With them, the algorithm bids on real customers who actually buy and finance.
6. YouTube + Performance Max for awareness vs Search for high-intent — YouTube and PMax are top-of-funnel and discovery; Search is the bottom of the funnel where someone is actively typing "used Audi A4 Bournemouth". Mixing budgets across these without clear role separation either starves the brand-build or wastes high-intent budget on awareness inventory.
7. Brand-spend ratio under 15% — Bidding on your own dealership name burns budget on buyers who'd have come for free. Anything over 15% of total spend is a leak.
8. Competitor make/model conquest separated — Conquest campaigns ("Audi A4 alternatives", "BMW 3 Series Bournemouth") are different intent and different creative from organic-brand search. Run them in their own campaigns with their own budgets, or you can't measure conquest ROAS at all.

Three or more reds — fix the foundation before scaling spend.

SectionSix productised deliverables we ship per cycle

Per-VRM dynamic remarketing with vehicle-feed. We connect the DMS or stock-management feed (Pinnacle, Keyloop, Drivex, Auto Trader feed) to Google Merchant Center for Vehicle Ads + Meta dynamic vehicle catalogue. Every car on the forecourt becomes its own retargetable asset. A buyer who viewed a specific 2022 A4 sees that A4 — with photo, price, mileage and finance-from monthly — across Display, YouTube and Meta until it's sold or the listing is pulled. Dynamic vehicle ads typically pull 3–5× the click-through rate of generic remarketing. Time to first signal: 14 days.

FCA-compliant finance creative. Every monthly-payment, PCP, HP, 0% APR or finance-from ad rebuilt to FCA standard: representative APR + representative example (cash price, deposit, term, monthly payment, total payable, optional final payment, mileage cap, excess mileage charge). Standing creative library kept current as base rates and dealer finance products change. Dealers stop carrying compliance risk; finance enquiries still convert because the disclosure is treated as a trust signal, not a deterrent.

Plate-change-window budget concentration. Annual budget plan that pre-commits concentrated bursts at March and September plate-change peaks (typically 35–45% of annual ad spend across those two six-week windows), with the remaining months running at maintenance level. Pre-built creative refresh per cycle. Dashboards overlay the plate-change calendar on lead-volume charts so the dealer principal sees where the spend is working hardest. Time to first signal: at the next plate-change window.

Service vs sales department separation. Separate campaign hierarchies for MOT, service, tyres, body shop and parts — each with its own audience, creative, landing page and CPA target. Department-level reporting so the workshop manager can see what their cost-per-MOT is and the sales manager can see what their cost-per-test-drive is. Cross-sell flows between departments routed via remarketing — a customer who booked an MOT enters the service-due audience, and a customer who's had three services enters the part-exchange audience.

Server-side + offline conversion uploads. GA4 + sGTM + DMS-to-Google / DMS-to-Meta offline conversion uploads pushing enquiry → test-drive booked → vehicle ordered → vehicle delivered → finance attached values back to the platforms. The algorithms bid on real customers who actually buy, not on cheap form-fills. Junk-lead rate typically drops 30–50% within 60 days; cost-per-finance-attached-customer becomes the headline metric the dealer principal actually cares about.

Conquest competitor make/model campaigns. Separate campaigns targeting competitor make/model search terms — "Audi A4 alternative", "BMW 3 Series Bournemouth", "VW Golf used near me" — with conquest-specific creative and landing pages. Budgets and CPA targets ring-fenced from organic brand and non-brand campaigns. Reporting shows conquest ROAS as its own line, separated from defensive brand bidding.

SectionWhat to do this week

Three actions, ranked by leverage. Same first three steps we ship in week one of a Foundation retainer.

1. Pull every finance ad currently running. Check each one for FCA representative APR + representative example. Owner: founder or marketing manager. Time: 60 minutes. Any ad mentioning monthly payment, deposit, PCP, HP or 0% must carry the disclosure. Pause anything that doesn't. Compliance risk first; optimisation second.
2. Plot the last 12 months of ad spend against the plate-change calendar. Owner: founder. Time: 30 minutes. Sum spend by month; overlay March and September. If the spend curve is flat — or worse, peaks in the wrong months — you've identified your single biggest re-allocation lever for the next plate-change window.
3. Decide DIY, DWY or DFY for the next 90 days. Owner: founder. See the three ways.

SectionFive questions car-dealer / garage operators ask us about paid

What's a realistic cost-per-test-drive? £20–£60 for used-car dealers running tight per-VRM creative, £30–£100 for franchise dealers (the higher end reflects premium-brand competition on Search), £8–£25 for MOT and service slots. Cost-per-test-drive is leading; the truth is cost-per-finance-attached-customer, which typically lands £200–£500 used and £300–£800 franchise once offline conversions are flowing.

What's the finance attached % we should expect by channel? Search drives the highest finance-attached rate, typically 55–70% on used and 65–80% on franchise — buyers searching "PCP Audi A4" are pre-qualified intent. PMax with proper signal feeding lands 40–55% finance-attached. YouTube and Meta upper-funnel sit at 30–45% — lower, but the absolute volume of finance-attached enquiries is meaningful once the audience builds.

How big is the plate-change ROAS spike? 2–3× over baseline at March and September peaks for accounts with concentrated burst budgets. The lift comes from three places: search demand spikes (Google Trends shows the curve plainly), competitor brands run heavier creative so cost-per-click rises, and buyers who've been researching since Boxing Day are finally ready to book a test drive. Run flat budget across the year and you miss most of it.

How should service vs sales spend split? Roughly 70/30 sales/service for franchise dealers; 60/40 for used-car independents who lean harder on the workshop margin; 30/70 for MOT-and-service-led businesses (MOT centres, fast-fits, garages). The right split depends on department gross-margin contribution to the business, not on what's loudest in the agency report. Run separate campaigns per department, set separate CPA targets, and let department managers see their own numbers.

Can we run this ourselves with the playbook + £750 audit? Yes — most dealers can run the campaign architecture themselves with a competent in-house marketing manager and a workshop / sales manager who'll feed offline conversion data each week. The £750 audit gives you a written red/amber/green of your current account, FCA-compliance check on every finance ad, and named-owner / dated next steps. Credit toward first cycle if you sign for DWY/DFY within 30 days.

SectionWhere to go from here

If you want this shipped end-to-end on a productised retainer, book a 30-minute discovery call.

If you'd rather have a senior practitioner reviewing your team's paid spend each week, the coaching plans start at £750/month. If you have a hard deadline (a plate-change-window run-up in February or August, or a new-franchise launch), the two-week embedded sprint lands a senior practitioner in your account for ten working days at £3,000 fixed for plate-change-window prep (Mar/Sep) or new-franchise launches.

Or run it yourself. Eight-point audit + one deliverable a month + twice-quarterly office hours.