I'm about to buy a new Mazda 3 (manual) which has the electronic parking brake which I haven't used before. I park my car facing downwards on a steep 1 in 3 gradient downhill slope on my driveway. Will the the electronic parking brake release automatically when I reverse uphill out of the drive and prevent the car from rolling forwards (i.e. hill start assist working in reverse)? if not, how do you reverse up a steep incline from standstill?