I think I found the 2005, and 2006 clients. - General Discussion - itch.io
Internet Archive Search: roblox
Returning to old Roblox.... (Internet Archive) | Mythik_J - YouTube
ROBLOX.com
Roblox Premium is here! - Announcements - DevForum | Roblox
I found one of the earliest Car crushers 2 archives (https://web.archive.org /web/20170924191601/https://www.roblox.com/games/654732683/Collision-Damage-Car-Crushers-2-Beta#!/about) : r/CarCrushers2
How To See the OLD ROBLOX Website... (2004-today) - YouTube
Roblox - Archiveteam
ROBLOX Game Clients 2005-2007 | Forums - The Lost Media Wiki
Wayback Machine - Chrome Web Store
Merely on Twitter: "Fun fact: Even in 2007, ROBLOX players still complained about "old ROBLOX" being better. https://t.co/uVlTUEXz3u https://t.co/U2nPJbTRwh" / Twitter