Any difference buying in Mclaren dealers or at specialist?

[giggsy]

Starting to look at a 12C in the classifieds & noticed the lack of pre-owned 12C within the Mclaren dealers. Is there much difference between buying at a specialists compared with a official Mclaren dealer?? Can one add a Mclaren warranty onto cars bought outside of the network, similar to the situation like in Porsche??
Ideally would like to buy outside of the network due to greater choice available & then add a Mclaren warranty afters..

[giggsy]

Thanks for that..
Is Alistair on PH?

[giggsy]

Cheers