Don't lah buat-buat confuse, its still the same db But looks like different DB? The back pic DB looks like the Top 40 yellow box set DB, like the one below:
Yep, for me I like to fold my loose foldabox first thing although no loose car yet. After a while, it is easier to open and close. I think the plastic will stretch over time.
Spotted these 2 recently in the wild. Skipped the Viper coz tampo didn't look too good, will try to look for a better one. Creature Cars pack is a must-get for Piranha and Shark collectors.