First Image is a XTM X-terminator. i think it was the RTR model judging by the front top plate/steering brace.
it is going to be very difficult to do a reverse image search, there are a lot of very minute changes between brands and even models of buggies.
for example the receiver box in the X-ray, shape of the plastic mud guards, shape of the top plate, construction of the front hub carriers, pillow balls vs camber links etc.
typically some of teh best places to pay attention to is the front chassis plate/steering brace, servo mounting plate, and receiver box.
judging by the pics I'm going to say Ofna Ultra LX *Comp*
https://www.competitionx.com/pdf/vehicle-manuals/ofna/ofna-ultra-lx-comp-manual.pdf
largely the Ofna Hyper series is the same as Hobao hyper series (comparing period correct to period correct), that was in the timeframe OFNA was purchasing the rights to certain vehicles (mainly Hong Nor and Hobao) and selling them under their name, sometimes they made tweaks though, or had their own custom upgrades.
EDITED its the Ultra LX Comp* model, not just Ultra LX.