PRIVACY

Matthew Lotterhand is the data controller for this survey and decides how and why your answers are used. Questions, or any request under the rights below, go to conference@hagi.com.

The survey is fielded alongside HAGI (Historic Automobile Group International), whose market indices are analysed together with the aggregate results.

Three things, and nothing else:

• Your answers to the survey questions. Stored against a random identifier, not against your name or address.
• Your email address — only if you choose to give it. One optional question at the end asks for an address so we can reach you about future waves. Leaving it blank is the intended path, and the survey is complete without it.
• A small amount of context about the response itself: which invitation link brought you here, which version of the price question you were shown, when you started and finished, and a coarse region — one of United States, Canada, Europe, Middle East, Asia-Pacific, Latin America, Africa — worked out from your device's timezone setting.

• No IP address on your response. Your answers carry no network address, and the region above comes from your browser's own timezone, not from a location lookup. To keep automated abuse from distorting the results, the database may briefly hold a one-way scrambled fingerprint of the network a request came from — it is never attached to your answers, cannot be turned back into an address, and is deleted automatically within 24 hours.
• No precise location. Only the region label is kept — not the timezone it was derived from.
• No tracking cookies, no analytics, no advertising pixels. There are none on this site.

The survey does store two items in your own browser's local storage so that refreshing the page doesn't lose your progress. They stay on your device, are readable only by this site, and are cleared when you finish. Clearing your browser data removes them.

For respondents in the UK and EU, the legal basis is your consent, given by starting the survey — as stated on the opening screen. Providing an email address at the end is a separate, optional consent. You can withdraw either at any time; see Your rights below.

Answers are analysed to describe the collector car market — what people are buying, selling and holding, and what would change that. Findings are published in aggregate: no individual response is ever published. Individual responses are shared with HAGI, our research partner — see Who else can see the data.

The public results page never shows free-text answers, email addresses, or the specific car you described — those are stripped before anything leaves the database. It also stays dark until enough people have responded that no individual can be picked out of the totals.

If you finish the survey you are offered a private link to your own answers shown against everyone else's. That link contains a random identifier, is shown only to your browser, and is never published — but anyone you forward it to can see your answers, so treat it as yours.

HAGI (Historic Automobile Group International) can see individual responses. They are our partner on the survey and analyse the responses alongside their market indices. What they receive is your answers — not your name, which we never asked for, and not the email address you may have left at the end: the contact question is excluded from the export they are sent.

Two service providers also process the data on our behalf, under their standard data-processing terms: our database host and our application host. Neither uses it for their own purposes.

Nobody else is given access to individual responses.

Survey answers are kept indefinitely as part of an ongoing time series — the value of the survey is the trend across waves, which requires the earlier waves to remain. They are anonymous, so retention carries no ongoing identifiability.

Email addresses are kept until you ask us to remove yours, or until you unsubscribe from the survey invitations.

You can ask us to give you a copy of your data, correct it, delete it, stop using it, or send it to you in a portable form. You can withdraw consent at any time, and you can complain to your data protection regulator — in the UK, the Information Commissioner's Office; in the EU, your national authority.

One practical limit, because the survey is anonymous. For most responses we genuinely cannot tell which row is yours — there is nothing stored that connects it to you, which is the point. That means we usually cannot action a request about a specific response unless you can identify it. If you kept the private results link you were offered at the end, send us that and we can find and delete your response. If you gave us an email address, we can always remove that on request, whether or not we can locate the answers it came with.

If this notice changes we will update it here and change the date below. Last updated 25 August 2026.