I’ve got a Kia with keyless entry and start via the fob. But there is a key hidden in the fob. And a hidden keyhole in the door handle when you pry off the cover. And there’s a place you can put your fob to start the car if the fob battery is dead.
But you have to read the manual fairly closely to find any of that (except the key - although the button to release the key from the fob is unmarked, I did find that on my own.)
Biggest fault of the car is that there is no place to secure anything in the car - if you valet park, the glovebox and the trunk can’t be secured. No place to put a gun if you have to valet park at a no-gun venue like a courthouse or hospital.
Corvette similar. If you have a dead battery there is a keyhole hidden above the rear license plate and a key hidden in the fob. Open the trunk. If you want you can pry up the right side rear floor of the trunk and replace the battery there or you can pull an inconspicuous ring on the driver’s side of the trunk which opens the driver’s door and then pull the hood release and jump the car.