Well, if you have no NCB at the moment it won't go up as you have no discount to lose. However you won't be able to move company for about 3 years. I'm not sure if Quinn Direct load premiums after a claim.
In this instance I would be careful about paying for it yourself. To do that much damage you must have rear ended the VW at reasonable speed. There is every possibility that the people in the VW could claim damages (unless you didn't swap Insurance details).
Personally I would claim off Quinn, wait to see if any personal injuries claim arises and wait for my renewal premium. If it has been hiked you can pay Quinn back the 2k you claimed before renewal, get your 1years No Claims and (if there is a loading) remove it.
Most companies will allow you to do this but check with Quinn first to make sure they do.