Design and construction of a car remote

I want to Design and Construct a remote control system for starting and stopping car engine, opening car doors with 5-minuite shut down timer( i.e to open car doors then after 5-minuite the door(s) close).I also want the remote to indicate by beeping 1-minuite to the end of 5-minuites.Iwant an assistance on designing the circuit and how to actualize the project. Thanks for the assistance. Bless you

Pretty involved project, what experience do you have with electronic circuit design? How far along are you with the project? What questions do you have, are you stuck on something yet?