Bicycle Tag of bike

Well done Stubbs! So if that's the plate, is it a personalised plate (because it's a 312 model), as otherwise it's illegal to insinuate a car is more recent (2012), than it actually is (it being pre-2002 if BQ is correct).

That's an old V-reg plate - if it were a 12-plate it would have two letters before the "12", not a letter and a number. Would fit the age (and there was no 312 model, it's down as a 328 Ci).