Settings for a car 2 channel

Hi I have to make a profile for a car.
I need some advice.

I set throttle cut at 0. How to avoid (like in an helicopter) that if you remove the throttle hold and it doesn't find 0 he doesn't start the motor?

Any other advice to configure a car?

Slightly OT, but I just set up my "vintage" Tamiya Frog with an OrangeRX DSM2 RX and ESC, with throttle on the left stick (mode2 - no spring on the stick); I set up more dead band by simply using a 13-point curve, leaving the middle three points as 0 and setting the rest in a linear fashion. that way you don't have to be right in the middle to get zero throttle.

I've only driven it twice so far, tossing up whether to set up with full positive range on the throttle stick and using a switch to chuck it into reverse; maybe with a "sticky" test to make sure you put the throttle to zero before reverse engages.