I would recommend the Parma Speed 8 or Trinity Speed 9 (almost identical).

i tried the Protoform Speed 12, lots of downfroce which made it like the Ascari body for me, too twitchy to drive on carpet. never tried one on asphalt

i am trying a Parma Zytec right now (3 races so far) it looks like a altered Speed 8/9. seems to have a slight bit more steering and less rear downforce though. i will probably go back to the Speed 8/9 bodies. they seem more predictable on carpet or asphalt