For the episodes, it is the episode of the pic, so either put a "+" after the episode number to indicate that it appears in others, or use comments to mention that it appears in multiple episodes (possibly listing them, as I often do by including extra pictures).
What would it add if the episodes were directly mentioned in vehicle info? As currently the episode is there mostly to "force" people to mention it, and also to be able to sort by episode number.

I agree... and... my wish its add the flag of the Mercosur. I see the Gaucho, and its developed by Argentina and Brazil. For example
http://www.cocheargentino.com.ar/g/gaucho.htm

Here's a wish:
- Ability to assign multiple episode numbers to a vehicle

Indeed, I added "origin" to the search fields, I do not know why I did not include "made in" and "made for" at the same time...

I usually browse through the list to find such vehicles: http://www.imcdb.org/search.php?resultsStyle=asList&sortBy=0&make=Fiat&model=600

Kiss Me Stupid: http://www.imcdb.org/vehicle.php?id=93436
The World of Henry Orient: http://www.imcdb.org/vehicle.php?id=132843
The Andy Griffith Show: http://www.imcdb.org/vehicle.php?id=225781

Do you know what I'd like to see here? The abiltiy to search for vehicles made for other countries. When I posted this Fiat 600 from "The World of Henry Orient" DynaMike mentioned that this was the second Fiat 600 made for the USA on this site. I'm having trouble finding the first, and any others that have been posted since then. All other Fiat 600's I have no problem finding, though.

Yes, but I wanted to so something quickly and very basic when I made it
I was also afraid that allowing to draw a small box would encourage people to put too-background vehicles.
But some day I may replace that by something like what is on Flickr, where you can comment an area of the picture.

I would suggest a future enhancement of the car highlighter box. For now, it’s a fixed standard length and width, which does not always fit the size of the vehicle being highlighted in the capture.

It would be nice to click on the capture and drag the highlighter box, to custom fit it's size to the vehicle being highlighted.

not days I hope not years either
depends when I have free time for that...

So about when can we except to see a notification function on the site? Are we talking, days, weeks, months or years?