The infinite welding charges problem has since been fixed in the dev version and the nightly builds (and potentially the main version as well, I’m not sure if it was included in those few fast bug-fixing releases after the main one).
As for the wrecks themselves, it’s pretty much intended behavior. Hopefully as time goes by there will be a little more variation in the wrecks instead of just engine broken/wheels missing/no gas, but other then that it’s basically the way it was planned to be.