Third party vs fully comp

So Greg is likely to share driving with me when we go to Wales soon. He is covered to drive my car 3rd party. My car, according to http://www.webuyanycar.com, is worth a grand total of fifty quid (the tyres cost me four times that! And it doubles in value when I put petrol in it!).

Given these facts, is it worth insuring Greg to drive my car fully comp? Not sure if this is a factor, but I have RAC roadside recovery.

Third party vs fully comp

So Greg is likely to share driving with me when we go to Wales soon. He is covered to drive my car 3rd party. My car, according to http://www.webuyanycar.com, is worth a grand total of fifty quid (the tyres cost me four times that! And it doubles in value when I put petrol in it!).

Given these facts, is it worth insuring Greg to drive my car fully comp? Not sure if this is a factor, but I have RAC roadside recovery.