This won't help you get it open, but...
Does the Evora have the handle INSIDE the trunk that is there so that someone locked in the trunk can let themselves out? I think it may be a safety regulation now.
My Exige had one. Anticipating that someday I may be in your situation, I got a longer cable from a bike shop to replace the inside cable, routed it to a rear wheel well so that I could open the trunk that way.
Sure, someone could get into my car, if they knew to look for the handle.