Its Nissan Other. I think they have a 300/350/370 combined Z class and then the only other class is well, other.
Tarek if you want to enter man, go for it. Just warning you that coils, wheels, an intake + exhaust, a lip, and a sound system probably arent going to win this competition. For Christ's sake Bart's car launches rockets (literally). Although you do have one of the better stanced Altimas Ive seen so who knows what the judges will go for.
EDIT: I stand corrected, looks like they added a separate Altima class this year? That has never been there before AFAIK. Maybe us NICO boys forced them to add it since everyone was getting punished by Rs.
124 NISSAN Z
125 NISSAN 240SX/SILVIA
126 NISSAN ALTIMA
127 NISSAN OTHER
Full list here:
http://www.carsatcarlisle.com/pdf/2013_PNS_Classes.pdf
2nd EDIT: Here are last year's results:
Z
1 ZACH DAVIS 2010 NISSAN 370Z 117
2 MARK KELLY 2006 NISSAN 350Z 117
3 DAVID BRENNAN 2006 NISSAN 350Z 117
240/Silvia
1 Beau Myers 1993 NISSAN 240 SX 118
2 Kevin Harmon 1997 NISSAN 240 SX 118
3 JAMIE ROBINSON 1996 NISSAN 240 SX 118
Other
1 Michael Hurley 2009 NISSAN GTR 119
2 BART HELMUS 2009 NISSAN ALTIMA 3.5MT SE 119 <---NICONAUT
3 MIKE FREDERICK 2006 NISSAN SENTRA 119
Chrysler Neon SRT4
1 Allan Peetz 2005 DODGE NEON SRT‐4 140
2 STACEY ACEVERO 2005 DODGE NEON SRT‐4 ACR 140 <---NICONAUT
3 JUSTIN PONS 2003 DODGE NEON SRT‐4 140