There have been a few attempts to get this (the Zonda) car racing in the past and they have failed. Aside from the cars wretched aerodynamics the main reason it failed was because of the half arsed attempts by very bottom end privateer teams. Granted, the BMW M3 has never been the most aero-efficient car in its class (perhaps when it was a touring car...) and it saw success what for 7 or 10 years? The M3 did have the advantage of BMW Motorsport, AC Schnitzer, and PTG pushing it along. So until a Champion Racing, PTG, Oreca, or one of those type of quality privateer teams picks up the program (see Reiter Engineering and Audi turning around the ship headed for the ice burg known as Lamborghini with their Murcielago - it was failing... well, I don't know why!) because Lord knows Pagani aren't going to foot the bill, the dream all of y'all Zonda fans have of seeing this thing take the fight to Le Mans is just that - a dream.
As far as 30+ fields at Lime Rock, I believe they managed 30+ with the Grand-Am GT challenge last year, and are set to again this year (Memorial Day weekend, hearkening back to the IMSA days!!) If the rumors of the four new cars from CET/Solaroli Motorsports are true (two 997 and two Spyders) as well as entries from Cytomax and th'other Lola P1 team (which would bring me to my personal milestone of a half dozen in P1) than we have got ourselves a grid of 30+. Also we have got the return of van der Steur racing's Radical. Perhaps we have a bright end of year in sight for our beloved series, no? Well, 30+ car fields consistently. Milestone reached.
**Don't count out the very "out there" rumors of an Aston return - and I mean AN Aston return! And lastly we should expect one-off's by American team Binnie Motorsports (now full-time LMS) Didier Theys et al (Horag-Lista Racing), a Team Modena test of the waters at the Petit and Sports Car Championships in preparation for the finale of the LMS at Interlagos, as well as factory Creations and/or Zyteks showing up for the last two events as has become the norm in the ALMS.**
m.piedgros