Unfortunately WSID is way too expensive for VW clubs to book and organise a 'VW drag day', in the same way as Warwick, Portland or the previous VW Nationals drags at Oran Park. It just isn't possible (unless someone wants to donate $20,000+?), which is a pity. That's why, instead, we are going to supersprints at Wakefield Park for the Nationals next May.
The only way to get a VW thing happening at WSID would be to tag on to an existing event. We thought the nostalgia drags seemed the most attractive option, if possible. We would have loved to see VWs racing on the same program as classic V8s!
The NDRA turned us down about adding a category for VWs, so VW drivers would have to look for an existing category (as you said), but they are not VW-friendly! American and Aussie Muscle cateories don't apply, obviously, nor does the 'Exhibition' class. Gas? It's for Pre-1980 US or Pre-1972 Aussie muscle cars with ETs of 10.99 or quicker. They do allow 'other makes or models reminiscent of the era', but I doubt that would include Volkswagens, even if they could beat 10.99, as their A/AA and B/BB classes are all for either 6 or 8 cylinder engines. Vintage Gas is for Pre-1967 'specially themed sedans', Aussie, US and Hots Rods, running 9.5 sec or slower. Again, the classes are all for 6 or 8-cylinder engines. Nothing there for VW-engined drag cars. All the rules are at
http://www.nostalgiadrags.com.au/drags/index.cfm
It looks like the Nostalgia Drags will remain a great day to go and watch, but not compete in, for VW drag racers.