Wow. Lai is impressively mobile tied to a chair.
Lai had some serious maneuvering skills if she could get herself and the rolling desk chair she was tied to, into the back seat of that car. Opening the car door must have been tricky, not to mention getting herself and the chair shimmied inside, minus the use of her hands and arms...
I think had I been her, I would have worried about using a garage tool to free myself instead of hiding myself (plus chair) in the back seat of a car.
This is all funnier when you see her on the chair in the middle of the road, unable to move a single inch when she thinks Frank is going to hit her with the car.
Ah well. Good thing there is the deliciousness of Jason Statham to look at in this movie to make all the plot pitfalls and unbelievabilities worthwhile.