way i see iy yo have 4 choices:
cen matrix rtr (good engine, and i hear it''s one of the most durable buggies)
hyper 7 rtr (mediocre engine, can take a beating like no other buggy, the most durable)
hyper 8 rtr (more race orianted than hyper 7, same engine, not as durable)
hurricane xp (good engine, people say it''s extremely durable, needs a lot to be race worthy)

have fun