A bare-bones Thunderbird is still a nice car. The 390 is standard, the AM radio is standard,
power steering and brakes are standard. I don't know exactly how many options were offered, but the ones I can think of include a rear radio speaker, an AM/FM radio which includes a rear speaker, a "Studiosonic" sound which is essentially a reverb, power windows, air conditioning, cruise control, power seats, a split seat that makes into a headrest, and then a convenience package that includes four-way flashers, power locks, and idiot lights. The door courtesy lights came with the landau I believe, and the convertible, and might have been an option on the
hardtop. Right side mirror was probably an option. I don't know if there were optional wheel covers, but the fender shields might have been optional.
My own car (64) has factory A/C, but it has never worked since I've had the car. Also, someone removed the power rear-quarter windows and put in cranks. I want to eventually fix both of these, but even so it's a nice car.