To understand why people still search for this specific version, we must look at the state of technology in 2007-2008. Windows Vista was new, multi-core processors were becoming standard, and the cloud was still a nascent concept.
Autodesk is notoriously aggressive about protecting its IP. While they rarely sue individual downloaders, they do monitor torrent swarms. Your ISP will send you a DMCA notice. If you are downloading this for a business, the fines start at $150,000 per willful infringement. AutoCAD Map 3D 2008 Free Download
Autodesk once offered a 30-day trial for Map 3D 2008. However, because the software is deprecated, Autodesk has removed these files from their official servers. Any website claiming to host the "official trial" is usually lying or hosting a corrupted copy. To understand why people still search for this
If you need similar functionality today without the security risks, consider these options: While they rarely sue individual downloaders, they do
If something seems too good to be true (like a free, full version of professional GIS software from 15 years ago), it is almost certainly a trap.