How concerned should I be that after 2 days of driving my brand new LR4 the vehicle shuttered and clunked as every possible warning light came on: reduced performance, transmission failure, stability control deactivated, etc and check engine light came on. Amazingly this happened just blocks away from the dealer and I was able to limp over and drop it off on a Sunday. On Monday they looked at it and said "good news" its just the cam sensor. Should I be concerned or is this just bad luck?