Park & ride is economical way of travel.
In this service you will need to drop your car yourself and minibus will drop you to the terminal.
On your return you will need to wait for the minibus for you to come to the car park and take your car from there.
If you are not in rush and if you have plenty of time then you can choose that service. All most all our car park for the park & Ride service provider require your key to be left with them and some of them take your key with you.