I would take the Challenger.

If you are really concerned about theft I would double up the theft protection.

The way people steal those cars is to break in, connect to the computer and create a new key. Sadly it seems to be easy to take out the side window on them even when rolled up.

Put kill switch in the car that will shut off the PCM, fuel pump or ignition. If they get in and clone the key it still won't run.
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