rccar action made a vorza go 100mph. its not the same car or chassis, but they used IMEX trued foams, MMM, and a high kv motor. you will also need to have as much radio range as possible to get up to speed. i scanned the article into a PDF, if you would like it, PM me your email address and ill send it too you.
they used the foams because the tires expanded to different sizes at about 80mph and caused massive crashes.
HPI TEKNO VORZA, 2200kv, 6s maxamp, MMM, 4PKS, huge balls