Perhaps this is too detailed? Or too insane?
Tactics up for revision. I'm pretty sure if he's not willing to chat with us, we have even odds of being shot.
Classic 1:In the coolest voice we can manage, "I can give you the car if you really want Ben, it's just a setback in my master plan." Pause as though to think for a moment, and then continue trying to talk Benny down by piquing his curiosity. "You're more than big enough to take care of yourself, even with the THEY running around just outside in the dark. I probably don't have to tell you their one, fatal weak point. But you know what I don't know, Ben? I don't know why you want this car so badly that you're willing to threaten me for it when I know we can help each other out."
If Benny's insistent on not hearing us out, we'll cut to the chase, and if he's incredulous (as he likely will be), we'll play along, "Alright. I can't help you if you don't want it. I'm gonna stop now."
We'll come to a slow, steady stop, "You're in charge, whatever you want is fine."
If he insists on us turning off the car during the switch, we're going to palm the knife, take out the keys, and use handing them to him as a reason to get close enough to disarm and threaten him, or if that seems unlikely stab him fatally.
If he neglects this and lets us leave the car on, but insists we exit the car first, we will give Nicole a hug during which, we'll apply the parking brake instead of actually putting the car in park and explain that we won't leave her. Then exit the car, leaving the car open until he gets out. When his door opens, whisper, "Ben... did you see that?" in an urgent voice. No matter what, when he closes his door, we hop back in, duck down with Nicole and mash the gas down.
The obvious simpler variants on this plan if Benny decides to exit essentially simultaneously to us, or laughably, before us should also be run.
If Benny insists on all sorts of precautions like having us get on the ground, back away slowly from the car before he gets in, or starts giving professional-like instructions, we're going to do the most reckless thing I can think of, and lean the chair back after removing our seatbelt to try and control his firearm, and turn to wrestle him. Hopefully the stress won't awaken the
Parasyte.
Of course, this operates under the working assumption that he's not just going to kill us when we come to a full and complete stop... so...