Jon - Are you sure it is McLaren and not Miller? The reason I ask is that Miller was at the Boston Auto Show last year and some of the info I had found initially just listed "McLaren". Also, where did you find the 2014 floor plan? The one listed on the NY Auto Show site still claims to be for 2013 (http://www.autoshowny.com/show/floorplans).
The Boston Auto Show is this weekend... Miller (McLaren Greenwich) will be there with a few cars, and I'm sure they will have some other exotic brands as well. Though it is certainly not the spectacles of Detroit or Geneva, it's a decent way to spend a few hours if you're looking for an excuse to go into Boston.
I'll be heading down on Sunday. If anyone else is thinking of going, PM me and we'll see if we can meet up.