Hi

In the (what seems like) zillions of times that I've flow in/out of England, it has always been LHR for better or (usually) worse.
But next week I am flying out of LCY for the first time and was wondering where the car rental (Hertz in this case) drop off is relative to the check in counters? Is it walkable?
And regarding gas, I see a BP station on the south side of the airport (on the A1020) that looks convenient....if not, please let me know.

Thanks
Dan