Out-the-door price email negotiator

01Problem

The number on the website is not what you pay. Kelley Blue Book’s September 2026 average U.S. new-vehicle transaction price was $50,562 (MSRP average $52,342; manufacturer incentives averaged $3,359). The FTC’s Oct. 8, 2026 complaint against Greenway Auto Group alleged that in more than 92% of reviewed Kia transactions the buyer paid more than $3,350 over the advertised price, excluding government charges. FTC staff’s Sept. 15, 2026 Automobile Industry Pricing Transparency FAQs state that the advertised price must be the actual price any consumer can walk in and pay, and that a mandatory document fee must sit inside that advertised figure — example: a $40,000 vehicle with a required $85 doc fee must be advertised at $40,085. Interest is not part of out-the-door (OTD). OTD is the cash price: selling price + dealer fees + requested add-ons + tax + title + license, minus trade-in if you want a net-cash figure.

02Intake

VIN (or identical year/make/model/trim/color/options), stock number, whether in stock, in transit, or a dealer trade.
Monroney (window) sticker photo: MSRP, options, destination, total; plus any dealer addendum (market adjustment, protection package).
Advertised price from the dealer site, Cars.com, Autotrader, and manufacturer build-and-price, with dated screenshots.
State of sale, county tax rate, and whether the state taxes the full price or the net of trade-in.
Trade-in: VIN, miles, condition, payoff, third-party cash offers (CarMax/Carvana).
Credit-union/bank preapproval (used later in F&I, not mixed into OTD).
Manufacturer incentive stack: customer cash, loyalty, conquest, military/college, and which are mutually exclusive.
Competing written OTD emails from at least two other dealers on the same VIN or identical spec.

03Playbook

01
Decode the VIN at NHTSA vPIC (https://vpic.nhtsa.dot.gov/api/) and pull open recalls at nhtsa.gov/recalls. An unrepaired safety recall is a walk-away until the dealer documents the remedy.
02
Split four numbers and never mix them in the email thread: (a) vehicle selling price, (b) trade-in net of payoff, (c) APR/term, (d) add-ons. FTC consumer guidance: get OTD in writing before the visit and hold the trade-in until the vehicle price is locked. Do not put interest in the OTD figure (u/cubical_hell, r/askcarsales, 30d — Verified: OTD is a cash price).
03
Read the Monroney sticker against 15 U.S.C. §§ 1231–1232. Required items include MSRP, each optional equipment item, destination, and the total. A dealer addendum for “additional dealer markup” (ADM / market adjustment) is extra paper. Treat every dollar on it as a discount target, not a government or factory fee.
04
Demand a line-item OTD that matches the advertised price plus only charges a government agency requires the consumer to pay (sales tax, title, registration). FTC FAQs (Sept. 15, 2026): advertised price = walk-in price; a mandatory doc fee is inside that number; MSRP may appear if the actual price is more prominent. FTC March 13, 2026 letters to 97 dealer groups listed advertising a price that reflects rebates not available to all consumers, and advertising unavailable vehicles, as illegal pricing practices under the FTC Act.
05
Identify every dealer-imposed fee (doc, processing, “electronic filing” above actual cost, “prep,” nitrogen, etch, tint, paint protection, market adjustment). California Vehicle Code § 4456.5 caps document processing at $85 (DMV private-industry partner) or $70 (all other dealers) and forbids representing it as a governmental fee. New York 15 NYCRR § 77.8(c): $175 maximum; invoice must say it is not a DMV fee. Iowa Code § 322.19A: $180 maximum, must be included in the advertised price, with a required “DOCUMENTARY FEE IS NOT AN OFFICIAL FEE” notice. Maryland Transportation § 15-311.1: $800 (since July 1, 2024). Florida, Georgia, Tennessee, and Texas have no dollar cap — a $699–$1,295 “doc fee” there is a negotiated profit line. California SB 791 (raise toward 1% / $260) was vetoed Oct. 13, 2025; veto sustained Mar. 2, 2026. The $85/$70 cap remains.
06
Email the same spec to several dealers the same day. The community play (u/digcycle) is seven dealers, same model and color, “I am buying this week,” OTD in writing. Use the lowest complete, itemized, in-stock quote as the walk-away number. “Good” is at or below invoice-plus-destination minus holdback/incentives, or the lowest verified local transaction. “Bad” is MSRP plus ADM plus a packed protection package.
07
Stack manufacturer incentives from the OEM site. Conditional rebates (loyalty, college, military) may be advertised only if the advertised price is available to every walk-in buyer (FTC March 2026 letters). Put rebate-conditioned prices in a second column; do not treat them as the advertised walk-in price.
08
Trade-in last, in a separate email after the selling price is locked. Get a written CarMax/Carvana bid and ask the dealer to beat it. Rolling negative equity into the new contract inflates amount financed; show that interest cost separately (skill 20).
09
Sales-tax math: in states that tax the net of trade-in, an $8,000 trade-in on a $40,000 sale at 7% saves $560 of tax. Confirm with the state department of revenue before treating “we’ll give you more on the trade” as a wash.
10
Pay against the written number. Arrive with the email printed. If the buyer’s order exceeds that OTD, stop and re-paper. Community reports of 4-hour waits and “go 90 minutes before close” are unverified as strategy; the leverage is the written OTD, not the clock.
11
There is no federal three-day cooling-off right at a dealership (16 CFR 429). California SB 766 three-day cancel applies to used vehicles ≤ $50,000, not new cars.
12
If the advertised price was bait, keep screenshots and the written OTD request. File at ReportFraud.ftc.gov and with the state AG / dealer board. FTC Act § 5 still governs after the CARS Rule’s withdrawal. Willful Monroney sticker failure or alteration: $1,000 per vehicle (15 U.S.C. § 1233); no private right of action under AIDA — use it as a regulator complaint and as deception evidence.

04Checklists