I patched the holes and made "some kind" of engine. It's not quite the same as the original, but it will be good enough for most users. I have included parts of the hydraulic system (too bad I can't make the system work). I might come back to improve it later (if some time remains). Tell me what you think. Is it good enaugh?
Well, now I have even more polygons 
, time to weld something...
Here are LODs. I went far with highest one, over 125k, but lower LODs should make good performance.
And yes, @MrGTAmodsgerman , I will give it a working towing hook:)
I just made the R4's oldest hood as tuning part
It will use it as a replacement for Blista's "vented hood"
No, I didn't give up, I just have to create a lot. Here are some WIP pics:
steering wheel and dashboard as it was on the begining of 70s (or close to it)
I modify some parts from another cars, but most of polygons I created myself.
.
Speedometer should work correct, but showing mph
indicators and lights signal lamps will work too.
I will try to change it to 1967- 1974 version of the car... maybe also some tuning options for other versions, ... I will see what I can do:)
... 1974 -> 1967... my favorite:)
@MrGTAmodsgerman There is inner glass crack, just it braked fast in video. I think I did all right, have a look again, put it fullscreen...stop video after hits... And yes, I know how to "project normals out from pivot-helper point" in vertex mode
@MrGTAmodsgerman But I am going to finish this one, as I have done before... but wouldn't you be thinking about next..?
@MrGTAmodsgerman Du hast recht. Ich konzentriere mich auf Audi, höre dieses Lied ... Ich versuche nicht an NSU zu denken ... aber sie verflechten sich )))
@MrGTAmodsgerman I tested towing hook, you are right, it is easy. I maybe need some adjustment
(it should be somewhat higher), but ... even the smallest trailer looks too big for this car. Not sure is it good idea ... maybe if you have some smaller Add-On trailers.
@MrGTAmodsgerman
"vehicle_generic_mesh4" is texture for the grill. It is used for vanilla cars, yo can find it in many original .ytd files. I just changed lightness a little bit, and made normal and spec map myself. I have used it before... you can find it in .ytd of my Alfa Romeo Giulia Super. And yes you are right, I used "Alloy silver " texture instead of white spec map. I wanted to try it because I have good chance for mapping after I
disassembled car. It is easy to change it with white one , ...just I would regret time spent on mapping:)
Dirt I did:
for glass, too. I have some more things to do, and of course, i have to finally try to add towing hook:) I hope I will find enaugh time to finish it and publish it in next 7 days:)
@GreenAid Thanks for tip. .. I'm not very familiar with welding. I sow the option in verices mod; right click, edit,weld... but it did not change anything ( I probably did not do it right) ... But no problem ...
I enjoy recreating it... i looks better and better
@MrGTAmodsgerman The models are very different and difficult to combine. The sketchup shape of the model is better and I will try to use it for external parts.The problem with the sketchup model, as I see it, is that each polygon is a separate part (you can not select more but one polygon by "select separate") What I am doing now is to disassemble and re-create body parts on it...
@MrGTAmodsgerman
Yes, I am not satisfied with front look of the car. On sketchup model it is much more Audi. Whole sketchup model is much closer to original look. But, model1, I worked on, is much higher quality as a 3d model. Next days I will spend time to find optimal combination of those two...
@MrGTAmodsgerman I edit and create some mesh for all cars I work on...and as you say, improving my skills... but... I am far from creating car from zero yet. One day.. maybe
Rims on my model are still "Blista2". I might edit it.
@MrGTAmodsgerman I can try. I have never done it before, but if you say it is simple...
@Theoasterix Sometimes the hierarchy does things. Try to change the order in the hierarchy and see what happens
