Reader-added tags include "The answer's in the title", "The instruction booklet's for Gundam" and "This thing...can move!" (Line from Amuro Ray when he first starts up the RX-78 Gundam.)

How to do into car.

God damnit, stop trying to reïnvent the car, the old ways worked just fine and most of us know how to operate those.

I had the same problem the first time I borrowed my mom's push-button car.

...I'll stick to my Lada 2106 more for a little while.

I believe such cars start the engine by pressing the button and pressing on the accelerator, no?

My colleague's car is like that; when it idles at the traffic lights the engine shuts off. A quick tap on the accelerator pedal and the car jumps back to life.

Etnaz said:

I believe such cars start the engine by pressing the button and pressing on the accelerator, no?

My colleague's car is like that; when it idles at the traffic lights the engine shuts off. A quick tap on the accelerator pedal and the car jumps back to life.

You hold the brakes. As the comments mention, the solution is the title.

FWP said:

God damnit, stop trying to reïnvent the car, the old ways worked just fine and most of us know how to operate those.

These actually seem to be part of a security system to make hotwiring cars more difficult. Even higher-end cars that still use keys tend to now use some sort of bluetooth or electromagnetic chip in the keys to be a secondary validation, which can unfortunately make it even harder to start cars just because of interference or a low battery inside the key or just having the wheel turned to a location where the detector isn't in a good position or something.

It's also not like there aren't cars with key ignition that don't require you make sure it's in park, you have a foot on the brakes AND you give it a little gas...

NWSiaCB said:

It's also not like there aren't cars with key ignition that don't require you make sure it's in park, you have a foot on the brakes AND you give it a little gas...

In my experience with obsolete car "giving a little gas" is actually helping engine to start up by injecting fuel via pedal (at least for petroleum/LPG engines).
The "brakes" thing is to make sure that car will stay still when you drop park-brakes and shift gear out of neutral.

I don't know about sophistications on brake/gas pedals on modern cars, that really enforces you to do that outside of mentioned reasons.
P.S.: Any car with key start can be modified with push-button start - just a matter of modifying circuits and ineriors for inclusion of button.