Things you are going to need:
PS3 Proxy Link: http://www.mediafire.com/download/t6ztsj43uwozqhb/PS3Prox.zip
Link to Tutorial: http://sagamer.co.za/forum/showthread.php?128773-PS3-Proxy-Server-Version-2 (I will give you the steps I followed, his tutorial makes it seem harder to understand but good to read over.)
Link to Updates: http://www.nextgenupdate.com/forums/gran-turismo-6/699997-gt6-update-pkg-links-all-regions.html (Make sure you pick the right region, or the install will fail.)
PSN+
Step 1: Download and Install the PS3 proxy. And Download the updates.
Step 2: Plug your ethernet cable into your laptop/pc from your router and other cable from your router into your PS3.
(if you not using a router, try using a program called mhotspot to create a wifi hotspot).
Step 3: Start PS3 proxy. (Dont put on your PS3 just yet.) Make your pc is connect to the internet, then click on
get IP's. Two or more IP's addresses should show up in the box below, just click on the first one, it should now be in the IP address box. Leave the port at 8080.
Now Click Start.
Step 4: Turn on your PS3 and go to internet connection settings and set up a new connection. With the following:
1) Use Proxy, once picked it should ask you for a IP address and the Port. Use the IP and Port the PS3 proxy gave you.
2) Enable UPnP. Then test the internet connection. To if the Proxy is working try signing into PSN, then look over at your pc at the proxy under the
LOG tab to see if links are showing up.
Step 5: This where the
PSN+ account is needed to access the automatic game update feature. So you going to click On, and pick a time frame that you currently in, then tick the download game patches box (No other boxes). [If dont have PSN+ account try and get the 14-day trial thingy].
Step 6: Switch off your PS3, it should then turn back on by its self (make sure GT6 is in the PS3). Give it about 15sec to 30sec then a new link should show up in the log tab on the proxy (it looks like this but longer:[
http://b0.ww.np.dl.playstation.net/...S01893_00-0000000000000000-A0113-V0100-PE.pkg]). Now head over to the downloads manager(PS3) and the
pause the download.
Step 7: Highlight and copy the link in the log, then click on the REPLACE FILES tab and do the following:
1) Choose a place on your pc to save the XML file, then click save. (Do this
Once only)
2) Description. Use something like GT6 Update.
3) Paste the link you got from the Log.
4) Now choose the path to where the file is on your pc (make you replace the right file with the right link.
Example: Link A0113 should go with File A0113)
5) Click
ADD, it should now appear in the big box at the bottom.
Step 8: Back to the download manager and click
START. Right a way look over to the proxy under the log tab. If you get a link like the the first one then you have to do it again.
Trick for getting it on the first try: be as quick as you can when doing
step 7.
Tip if you are not quick: keep pressing pause and start till you get 10 or so links in the log tab then do
step 7 for five of those links.
When its worked you get something like this in the log tab:
http://b0.ww.np.dl.playstation.net/...S01893_00-0000000000000000-A0113-V0100-PE.pkg
--> C:\.......................................................................
And the download should be fast very fast.
Step 9: Since this is for GT6 you will have to do
Step 7 and
Step 8 13 times for each update. Take note of each updates size and make sure you watch the log to see when the next update link appears as soon as it does pause the download and do
Step 7 and
8 again (be quick).
Step 10: Once the download is done for all updates, do the install. I turned off my internet before i installed just in case. The install takes long very long.
Thanks to creemyv at sagamer.co.za for the original tutorial.
Hope this works for you like it did for me.
question is the 14.3 GB without all the updates or with all the updates? Also do i have to worry about major bugs with the digital version. 
its happening Almost 
