Car cutting out while driving

[Technikhaus]

Hey guys,
Thought I might ask here initially, otherwise I will find another forum for it.
My Grand Parents Rover Vanden Plas (SD1) seems to have a reoccuring issue lately, where randomly while you're driving along and the engine will just turn off.
5 seconds later it will just start running again...
Any ideas what may be causing this?
I suspect an electrical issue, maybe to do with the power to the fuel pump?
Which by the way was replaced earlier this year, and this issue has only been in the last two or so months.

Cheers,
Braydon...

[Bennoz]

The issues is that's a Rover mate. LOL. Worlds most unreliable cars.

I'd start with diagnostics readings mate.