Evening all
New member here

Signed up as one of my neighbours has a 126 bis that has been stood for 15years in a garage.
its a G reg (1990) on 23k. I've looked over the car today for about 20mins.
I'm not familiar with fiats as i'm a BMW/VW fan.
All seems ok however battery is dead (understandably), and tires are flat.
Its not moved since about 1991. my neighbour bought it when it was 12months old from 1 lady owner, with the intention of learning to drive but never got around to learning (scared of the road) so its sat in a garage ever since.
What i need to know is:
A) where is the battery?
B) what oil should i use to service it?
C) what are common faults?
D) I cant get the gearbox into 3rd and 4th gear, would this likely free up if warmed up and driven?
E) If i was to get the car up and running (with T&T) what sort of price would it fetch?
thanks for any help
Mike