If you are really worried about an EMP event, but don't want to clue family or neighbors in, classic cars can be a great hobby.
With an old fashioned carb and breaker point ignition about all you are going to lose is the radio. You might want to keep a spare coil and condensor in your metal tool box or a filing cabinet in the garage. You could even stash a circa 1978 HEI distributor and module in the box that you just never seem to get around to installing.
Old mechanically injected Diesel engines are nice too. And with Diesel you can make your own fuel if you have to.