I'm most likely going as well next Sat.
This is what I'll be looking based on what I've seen via social media:
Koenigsegg - Agera HH
Bugatti - Veyron Vittesse(Blue Carbon
)
Ford - GT, Focus RS, GT350R
Toyota - FT-1
Mclaren - 570S, 675LT, P1 GTR, & F1 GT Longtail
Porsche - Boxster Spyder, 918 Spider, & 919 LMP1(apparently turned up today with the 918)*see below*
Bentley - EXP-10 Speed 6
BMW - 3.0 CSL, Z4 GTLM, Alpina 2002tii, Alpina B6, anything with an M/// badge
Mercedes - GLE, plus any AMGs
Lexus - GS F, RC F GT3
Audi - R8 Competition, TT, anything S or RS
Nissan - Nismo GT-R
Alfa Romeo - 4C/ 4C Spider, 33 Stradle, TZ2, 8C 2300 Monza
Aston Martin - Vulcan
Chevy - Z06 Convertible, C7.R
Subaru - BRZ concept, STi display with at 22B
Kia - Optima, Soul concepts
Honda - Civic Concept, NSX
Cadillac - ATS V, CT6
Lincoln - Continental
And probably a whole lot more. I also plan on visiting my favorite dealership, Manhattan Motorcars, and obviously looking out for anything that might show up on the street.