65 Signet vert code W4?

Apparently the A-Z codes were extra cost options.

My 64 has the following and these codes correspond with what is installed on my car:

A=5: Torqueflite automatic transmission
F=1: AM Music Master Radio
H=5: Heater/Defroster
J=7: White convertible top
K=6: Power convertible top
M=3: Back-up lights
N=8: Windshield washer - dual jet
P=1: Mirror- outside left manual
QR = 02: 225 cid slant six (1964 used a double digit engine code)
T= 8:Battery 48 Amp
W=1: new car service with gas

In regards to the W. I have been able to decipher the following that i believe to be accurate:

1= new car service with gas
2=sold car/expedite
9=new car service without gas

the W appears to be related to how the car was ordered and where and how it was to be delivered.

sorry cant help with any other codes but i hope this gives you a start. again mine is a 64 and the codes may have changed for 65, if so, ignore my post.