As far as Bugging out goes, I'm staying put, Unless it is really bad.
I for see a fuel shortage of some type happening more than the need to bug out because of some disaster in my area, But you never know what the future holds. However I have several vehicles to meet my needs for different SHTF situations. The vehicles below are for me and my wife should we need separate vehicles.
I purchased a 1985 Diesel Mercedes station wagon with trailer hitch last year for fuel shortages or an EMP attack, Since I keep plenty of diesel fuel here at the house. I have also a small enclosed trailer also to go with this car.
This vehicle is EMP proof.
I purchased a 2014.5 Toyota Camry this year for gasoline shortages or high prices, and cheap transportation to get around with. This vehicle is not EMP proof.
I already owned 2 Harley Davidson Motorcycle to easily maneuver traffic jams if need be. But for safety reasons during SHTF I don't see it getting used much. These vehicles are not EMP proof.
I already owned a 2003 F-350 4X4 diesel Super-Duty for getting around in less than ideal conditions. As mentioned earlier I keep plenty of fuel here at the house for this vehicle also. This vehicle is not EMP proof.
I already owned a Mack Tri-axle Dump truck for what ever needs I need it for, except fuel mileage, It gets about 6 MPG, But holds 110 gallons of fuel. This vehicle is EMP proof.
I already owned a Toyota 4X4 4-Runner for getting around in less than ideal conditions and comfort. This vehicle is not EMP proof.
I already owned a very large enclosed trailer should we need to take valuables and belongings with us to leave town.
So to answer the OP's question, yes I have bought different vehicles in the past with SHTF in mind.
My Ford super duty I added a winch to the front of it, and an extra 105 gallon fuel tank.
I added Ham radios to all vehicles so I can communicate to my wife if cell phones go down.
For survival situations I suggest diesel powered vehicles, Since fuel is more easily stored.
A few pictures of my vehicles and setup.