I never had a Hot Wheels go bad. Some of those 69 Camaros only took a few years to show up. I recently found a few of the old 30's Anson cars have the hood break off. You could not see any indication that they had the rot but lifting the hood broke it from the hinge. I could not find it any where else on the car.
I'm quite concerned about that VW bus, looks like Franklin Mint. Although FM & DM both have had rash issues, I have not seen the cancer on any. I have that VW bus here never opened. Ray and Lance, It surprises me that you have had very little issues on this. Maybe its the cars you have but there were some that the entire run went bad. I have had way more bad ones than most collectors had, but I also have more cars than most collectors. I will say that there are some you can't tell by just looking at them. If you apply even slight pressure opening a door or hood it could snap off. I have had so many it put me in the parts business, There a few that the plastic bases have gone brittle as well. I would also like to make it clear that this is NOT just items from overseas. I have two farm toys, made by different companies here in USA that also fell apart. Ok, I have to go find my VW.
I have a few posted on here. They are 1/64 scale and nice trucks. The market is not as hot as it once waw but I like them. $10.00 No shipping is good even with a missing door. Check the completed auctions for a better feel of what they sell for.