Mine's an earlier car, with a smaller tank. The +4 had an 11 gallon tank, but my 4/4 tank is smaller. I'm just contemplating fitting a later (style) tank when mine eventually fails...
Cheers,
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '11 MINI Countryman Cooper D All4 '90 LR 90 SW