I'm sure EAC goes higher then
192 vbr. I've used 192vbr, but like 256 or 320 cbr better. For a car, unless you have a really nice system, 192 cbr is fine. I'm not into vbr, because some older systems had trouble playing vbr discs.
Also EAC needs to be setup correctly. Here is a guide for setting up EAC.