Fixed... and I hope that it did not introduce other bugs

As I mentioned somewhere in the comments today, indeed there is a bug. I forgot to handle the "&" as I did previously. I'll fix this in the evening.

I found a bug. I cannot see any models of Shelvoke & Drewry:

http://www.imcdb.org/vehicles_make-Shelvoke+%26+Drewry.html

also same for Cottin & Desgouttes:

http://www.imcdb.org/vehicles_make-Cottin+%26+Desgouttes.html

Obviously it is the "&" which causes problems.

I will check it out now.
But I think it's great!

very, very, very nice Antoine! Now it is easier to fix errors and it is also nice to see how many examples of a certain model is on our database.

About years, it would be like on wikipedia where you get the same page for models which share a name across several generations.

This youve done is very nice Antoine indeed, and very usefull, many errors are poping up now (e.g. i just fixed an Econonline), what is that of manually-made timeline table you say?

That would be really nice! What about the vehicles without modelyear added?

What I'll maybe add later is the possibility to add a manually-made timeline table, like what you find on Wikipedia for some makes; it makes models even easier to find.