[q50adix]

Wasn't 7 referring to the transmission and v for engine config?

Edit: And the engine type seems incorrect since e.g. q50 sig edition has different letter designation yet it's a 3.0t.

 

[q50adix]

7" means. It could be transmis

Considering the source, it wouldn't surprise me that it isn't entirely correct.

As far as the Vehicle Line coding of "V" is concerned, the "V37 series" pertains to the Infiniti Skyline vehicle line of which the Q50 is our counterpart. It isn't referring to the engine. That's listed under the engine type (F: VR30DDTT).

I'm not sure what the Model Change listing of "7" means. It could be transmission. No idea. More Japanese confusion.

Anybody with a 2017 have a "H" for the Model Year designation?

Yeah not really finding any "useful" source other than what's stated by Sid above and a few bits at https://www.vindecoderz.com. I'd be interested to know which coding or source record they use to determine the options included as well.

For the 5th character, the V37 series actually make more sense. I couldn't find the link where it said the engine config ("V") and transmission code (7) but I'm sure it's not correct. It's probably in my decom'd laptop.

The engine type is not always "F" for VR30 though, as there is also "E". Maybe "E" for 300hp and "F" for hi-output. I know "C" would always default to 2.0t and Hybrid is "A". The Q50 VQ3.7 had "B". It appears like a sequence code since most nissans/infinitis have "A" especially for those with single-engine option. Q50, Q70 and Altima, for instance, have more than one.

Here are some real examples btw:

JN1EV7AR4GM340674 = 2016 Premium Sport AWD
JN1FV7AP2HM850591 = 2017 Red Sport RWD
JN1EV7AR9HM841643 = 2017 Signature Ed AWD
JN1EV7AP4KM516517 = 2019 Luxe RWD
JN1AV7AP0FM790785 = 2015 Hybrid
JN1AV7AP8HM890085 = 2017 Hybrid
1N4BL4EV8KCxxxxxx = 2019 Altima 2.5L I4
1N4AL4FV9KCxxxxxx = 2019 Altima 2.0L (VC turbo)
JN1BY1AP9KMxxxxxx = Q70 3.7L
JN1AY1AP0FMxxxxxx = Q70 5.6L

 

[q50adix]

So it looks like the 9th character is like a parity bit that is used for error detection.