John, there will either be a cigar lighter socket under the dash on the passenger side or with the new spec a twin USB outlet (I'm told)
If the latter, adding a fused flying lead under the bonnet (where the battery is located) is easy and better than trying to use a cigar lighter socket.
I presume, when you visited the factory to see your car, you actually took a tour to see cars in build?

Graham (G4FUJ)

Sold L44FOR 4/4 Giallo Fly
'09 Gen2 MINI Cooper ragtop
'90 LR 90 SW