If you're checking whether fil3-neu1.dataplane.eu-i0.vehicledata.gm.com is a scam or a fake website, the short answer is no — it's not a scam, but it's also not a site you're meant to visit. The domain is a subdomain of gm.com, which belongs to General Motors. The URL structure suggests it's an internal endpoint for vehicle data, hosted on Microsoft's Azure cloud. The HTTP 400 error you see is actually a normal response for an API endpoint that expects specific query parameters, not a broken site.
For a backend service like this, the lack of a privacy policy, contact info, or social media is completely expected. The security is solid: a valid SSL certificate, modern encryption, and no blacklist warnings. If you're a consumer, you have no reason to interact with this URL directly. But if you're worried about malware or phishing, the signals point to a legitimate infrastructure component, not a threat. There aren't many reviews of this specific endpoint because it's not a public-facing business, so the best advice is to simply ignore it unless you're a developer working with GM's vehicle data APIs.