Right from the link you posted...
This jeep had failed its MOT and it was not economically viable to repair (completely rusted underneath) also none of us wanted the hasle ... all » of breaking it . Rather than just take it straight to the breakers we decided to have some fun with it first and see what it could do if realy pushed , all the driving you see in the video was on private land , after the destruction , the jeep and crap that fell off were low loaded to a local scrap metal merchant and it weighed in at just under 3 tons , for which we received £110 . Also we made sure that the kids you see in the vid were stood out the way on what ever run we were going to try . It would have kept on going had the transmission pipe not split , a super damm tough XJ