The top mechanism on your car is powered. On the left side of your car, is a
motor attached to the floor by a clevis pin and two rubber shock absorbers.
On the right side of your car is a slave motor, attached the same way. Power
to sync the raising and lowering of the top between the two drives is done
via a special "speedometer" cable linkage that runs from the power sided
motor to the mechanical motor. There should be a non descript switch located
under your dash. Looks like a toggle switch with a chromed or possibly
painted handle, depending on trim level.

The top motors are easy to repair. When originally made, they had grease,
orange in color, packed in at the base, and the two halves were screwed
together with a paper gasket. Over time the grease hardened, and the gears
would get stuck. Remove your back seat, then remove the back of the rear
seat. Unscrew the side panels,, which will expose the drive motors.

The reason he says it is a manual top is based on the fact that the top
mechanism is a screw drive, so by lifting the top by hand all you are doing
is pulling a long screw up thru the tubes.

When I rebuilt my top drives, I tapped a hole in each base and inserted a
Zerk fitting that I could over time add fresh grease. The electric motor on
the left side has three wires runing to it, and it is attached to the base
with a special rubber coupling, which counters the torque of the motor.

Bill
He also states the car has a manual