The Ultra GTP 2 is an Ofna product. Visit Ofna.com, Nitrohouse.com. I would search the on road and large scales threads on rc tech and radio control action site also.
The chassis is the same size as the Ofna DM1 Spec, and Kyosho Inferno GT 1, wheelbase of 325mm.
Ofna offers a sedan body, protoform has the PF8, Kyosho IGT 1 bodies and Delta Plastic (Europe).
"Yellow Jacket" Mugen MTX-6, Picco Torque
TeamNITRO RC Club, Lynwood, Illinois