MR4Racer- Here’s my evaluation of the main GTP style Pan Car bodies that are out there:
For a fairly neutral handling body, use the Protoform P35 Nissan or the Protoform Peugeot 905B.
For a slightly high downforce, higher steering body, use the Associated Nissan shown at:
http://www2.towerhobbies.com/cgi-bin...1&I=LX2711&P=7 .
For a low-ish downforce, very high steering body, run the Andy’s GTP Sauber at:
http://www2.towerhobbies.com/cgi-bin...1&I=LX1423&P=7 .
For a very high rear downforce, moderate front downforce body, you can try the Dahm’s Splice WSC at:
http://www.dahms-intl.com/dah21a.html .
I’ve ran all of those at one point or another over the last 10 years and rank the Protoform P35 as the best for the tracks I currently run on but you’ll have to evaluate your what your track needs. You may also be able to get something outside of the US that I've never seen.