I noticed in the beginning of the season in the montage of the segments in the upcoming season there was a part with Hammond driving truck that was raised and crashing into some obstacles. Which episode in season 13 was this bit in?
Most of this stuff was explained on the Transmission blog and has been hacked absolutely to death on this forum over the last 7 weeks. I'd suggest doing a search because I'm sick of reading about it all.
this has happened in past series as well. it is nothing new. things have been shown in the intro to the series that were either left until the next series or even completely dropped.
just wait until next series and hopefully you should see them then. if not then the producers were probably not happy with the end result and ditched it.
and as flydiscovery said this has been talked about to death already.