Personally, I wouldn't accept any deal which involves taking the car back under any circumstances. The car has been classified as a Cat D write off and Ellie would be under obligation to inform her insurer at renewal time that this is the case as apparently, some insurers might refuse to insure the vehicle. As it stands, if Ellie did decide to keep the vehicle, it'll likely be worth peanuts anyway. Ok, so legally, you may well not have to tell a private buyer that the vehicle is a Cat D write off, but morally, especially after what has happened, you'd probably feel like crap if you sold it on and the person wasn't aware of the history. I would still love to know exactly what sort of accident this vehicle has been involved in, but I guess none of us are ever going to find out.
If you are willing Ellie, once this has been resolved satisfactorily and should you decide to get shot of the car permanently, perhaps you could post the registration number of the vehicle on this forum so everyone knows to avoid it in the future if it makes it back out onto the streets again. Then, if any unsuspecting buyer does do some thorough checking and plugs in the registration mark into a search engine, it should come up and lead them to this thread.
If you are willing Ellie, once this has been resolved satisfactorily and should you decide to get shot of the car permanently, perhaps you could post the registration number of the vehicle on this forum so everyone knows to avoid it in the future if it makes it back out onto the streets again. Then, if any unsuspecting buyer does do some thorough checking and plugs in the registration mark into a search engine, it should come up and lead them to this thread.