I don't know all there is to know abou the Touring category but you are going to find an age cut-off there, I think - in that, once a car gets too old, it's no longer eligible. Turbo cars are listed but T2 is the slowest CURRENT T class, and this car ain't up to that, I don't think.
You may be talking T3 or T4, which as I understand it are going to replace SSB and SSC - a good thing, as far as that goes. There are NO turbos in SS at this point in time.
The TDi is a complete non-starter in IT under the current rules.
Hey - for all I know, someone in Topeka will think this is a great idea so why not go for it. I just have a suspicion that it's going to confuse the bee-jeebers out of them.
K