Buy and restore almost any car built before 1972. There is no electronic ignition in almost any of these cars. There is not a single “microchip” in them. They use a mechanical distributor with a rotor, points and condenser. The radio might contain transistors. Who cares?
Forget power steering and power brakes. Enjoy cranking windows up and down by hand. Choose a car with a manual transmission.
Convert front brakes from hydraulic drum to hydraulic disc for better stopping and safety.
If it’s a VW Beetle, there is not even a radiator or coolant aboard. It’s air-cooled.
Drive a car YOU control. To hell with chips and sensors.
If America suffers an EMP attack, you will be driving your car while MILLIONS of cars are disabled from EMP-fried computer chips. Carry a siphon hose and pump and help yourself to the gasoline in any of those abandoned and useless vehicles.
Enjoy 10 mpg too.