What parts would cause severe operating issues on Rangerover04 when i struck a

What is your question?

What parts would cause severe operating issues on Rangerover04 when i struck a object in road It leaked out oil- all of it. Pan doesnt seem to have hole in it....Hoses look loose near oil coolant hose area...It ran perfect prior to this incident. I am lost as to what it is...mechanic said engine is shot from no oil from incident.

What makes this problem better or worse?

Wont run over 5mph

How long has your 2004 Land Rover Range Rover had this problem?

Immediate after hitting object