I’d get an official tomy car to start- the oem’s are cheap, but without patience they’re not really worth the money even so.
Tomy cars in the 27mhz range seem to have the best range from my experience. OEM’s on the other hand- if it’s your first car- you might get stuck with a total lemon and not really know it.
I readily buy oem’s but mainly for parts or modding experiments.
-dan