Not exactly sure which ones got it for me but ive been doing Gulf livery on lots of cars such as the mclaren P1 and GT40
Is there a way to tell which tune/paintjob got me the downloads…?
It’s a combination of all your designs that gets you the payout, but you can see which one helped the most by checking how many uses they have, it’s uses that get you paid not downloads.
Thats the thing Im not sure which ones got me the uses
but oh well im happy =D
im going to start doing martini racing designs on some cars
Go to “my designs” select a design and it will tell you how many uses/ downloads it has.
Just be careful. Sometimes it lags bringing up the dialog box that tells you how many DL’s and likes you have. Unfortunately this box also allows you to unshare the design and by default this is what’s highlighted. Button mash too fast and you’ll unshare it forever resetting all of that design’s stats.
I reset a pattern with over 300 DL’s once like this. 
Mate I didn’t the same thing unshared my California design which had over 10000 downloads and uses! Nearly cried!
I have given up on doing designs and tunes, I’m not really good at them and I don’t understand how people do custom designs(how they put new layers in the game). That bothers me a little because I have all the other achievements except the 90Gs from design and tuning.
To check how many tunes people have downloaded is a little frustrating. What you have to do is go in to every car you have shared and get in the cars. Then click on load tune and push Right Bumper to get to your tunes. Then click on the tune and instead of loading it just read up above and it will tell you how many downloads, likes, and uses. If there is a shorter way to do this i am unaware of it and would love to know how to do it faster but as of right now thats how to check you tunes.
Actually you can see all of them in my designs, without switching the car.
Im talking on the tunes side. The tunes wont show up in the design area just the paint correct. I would love to be wrong because that would make things easier but i do think the designs are just for paint and the tunes have to be looked up individually.