How far does my key need to be at night ?

[Ryanpotter]

With this key I just need it near the car to open and start it so what's stopping a thief rolling up outside and opening my car as my key in inside the house ? How far away does my key need to be so it won't open and won't start ?
Thank you for replies

 

[Ben.Block]

Leave key in house, try to open car!

 

[fairm010]

It's taken you more effort to type that post than to leave the key in the house and try for yourself 😂

 

[DrR]

4.87metres.

 

[just-that-ek]

4.87metres.

Really I thought it was exactly 3.64 metres