HPI Updates The RTR Nitro RS4 3 Evo+
RTR NITRO RS4 3 EVO+… NOW EVEN BETTER! The legendary HPI ready-to-run Nitro RS4 3 EVO+ now features several high performance upgrades that make it our highest spec RTR nitro touring car ever. We added a 2.4GHz radio system, waterproof servo, 7.2V battery pack with AC wall charger for the Roto Start system, AA batteries […]