Front and rear subframes are both different, and failures of both have featured on the forum in the past. Both are expensive and practically unobtainable in the UK.Really there are only two parts that are 4x4 specific: the propshaft (and its bearing), and the reinforced under tray/sump guard.
Viscous couplings, though some may consider this to be part of the propshaft.
Depending on the model year, DMF fitment was 4x4 specific (these came later in the production run for some 2WD variants).
Any 4x4 specific trim parts could prove problematic, though this equally applies to most of the limited edition models.
Yes, rear subframe failure will almost certainly write the car off.Rotting rear suspension arm that cant be sourced would be my biggest concern.
The rear subframe was substantially redesigned on later cars; these haven't been around for long enough yet to know how durable they will be in the long term.
That's true, but none of them can be bought for anywhere close to the price of a 4x4 Panda.Plus as said before, if you want 4x4, there are better cars for the job
I'm worried now; could you send a link to the forum comments re suspension link?
Subframe Rot | FIAT Panda (Mk3)
My 07 4x4 Panda developed a knock under relatively low lateral forces when cornering. Looking underneath revealed the horror show in the photos. I think that's the subframe? So, is a new one, or one from a breaker, required? Are these 4x4 specific? Cheers

It's the tubular steel subframe itself that seems to be the biggest cause for concern. Whilst the chance of failure in the first ten years is likely remote, now that folks are keeping cars for longer, corrosion related issues are once again becoming more common. If I owned one of these, I'd want to try to get some sort of wax-based protection system into the tubular frame.
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