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For the price range I've head good luck with the hobbyking rotorstar servos. I've currently got one in a 1/8 truggy running the steering to see if it would crap out and it has yet to die on me, although it could probably use more torque in that application, you should be able to use any of the ones they have in 1/10 2wd with issues. I don't have the servo In front of me but I think this is the one I have https://hobbyking.com/en_us/rotorstar-rs-610mgc-hv-helicopter-cyclic-ds-mg-servo-15-83kg-0-095sec-59g.html. Just check the size of it to make sure it will fit your car since I'm not positive this is the one I'm using.