Andrew,
I think you are all to pessimistic about which Fiat Dino Spider version your soft top and your
Pininfarina hardtop should fit.
Now and then, some people has claimed that 2 Litre and 2,4 Litre Spiders are of different
length, and therefore not sharing the same body parts.
I am convinced this only comes from the fact, 2,4 Litre Spiders have different bumpers front
and rear - which adds 25 mm:s to the total length, not the actual body measurements.
The Spare parts Catalogues show different parts number for 2 Litre and 2,4 Litre Spiders´
front and rear fenders (wings), but that is just a result from the differences in how the 2,4
Litre front and rear bumpers are bolted to the body structure through new holes, and a new
location for the front side blinker lights. Every small change in detail makes FIAT list the
changed part with a new parts number!
The spare parts Catalogue pages below show all Dino Spiders from body number AS 000 0526
and on, have the same soft top and the soft top frame, both 2 Litre and 2,4 Litre cars.
Also,, the doors and the door windows are the same parts for both versions.
The first Spider "homologation version", up to serial number AS 000 0525 has a slightly
different soft top and soft top frame, and also the earlier interior, which - again - generate
different door frame numbers.
Soft top for 2 Litre Spider
Soft top for 2,4 Litre Spider
Door for 2 Litre Spider
Door for 2,4 Litre Spider
Door window for 2 Litre Spider
Door window for 2,4 Litre Spider
Hoping this can be of some help!
Dinoswede