A dealer group might run a different website provider per brand, a different GTM container per store, and a different mix of analytics and ad pixels per market. The agency handling it all ends up managing consent one site at a time.
Some platforms do not even let the store add a standalone privacy page. Meanwhile, a banner on its own does not decide what fires. What matters is how consent is configured, where the script loads, and which tags respect it.
The Website User Consent Tool centralizes accounts and banner instances, gives each one configurable behavior, and hands you install code that fits the site.