Is the car reliable for a long drive?
I keep it mechanically in very good shape. I drive it regularly, often on long drives up to the wine country, and I've never been stranded. You should be OK on a long trip.
Does it need premium gas?
Absolutely. If you don't put premium in it you will hear lots of engine knock, you will have severely reduced performance and you will shorten the life of the engine significantly. The gas cap is located behind the rear license plate... just flip the plate down.
Is the car loud?
A bit. It has a modified dual exhaust, and it is louder than stock. But it is no louder than a typical GTO of the same era.
Does the convertible top work?
Yes. It is a power top. It needs some coaxing to close... after the motor brings the top all the way up, step out of the car, grab the metal frame of the top and pull down, then latch it.
Is this car "showroom" clean and pretty?
No. It looks great, but it is nothing like showroom pretty. For example, there is a small crack in the lower right of the windshield. There is some mildly faded paint on the top surfaces. The dashboard has some signs of age. The engine compartment is not cleaned. Etc. Basically, it looks great, but just don't look too close!
What about seatbelts and airbags?
Yes, the car has seatbelts, but they are lap belts. There are no shoulder harnesses. There are no airbags, no anti-lock brakes, or other modern safety features.