The 1st character indicates the Displacement Volume
B = 2600cc(2568cc,RB26DETT)
E = 2500cc(2498cc,RB25DE)
H = 2000cc(1998cc,RB20DET,RB20DE,RB20E)
F = 1800cc(1809cc,CA18i)
The 2nd Character indicates the Drivetrain Options
C = HICAS included on model
N = ATTESA (GT-R, GTS-4, Autech)
The rest of the characters are the Model Code (ie R32)
i have a HCR32