Hi i have a 1995 2.8, when i got the car it has 18 inch alloys on them and i recon the previous driver smashed off every single curb buckling one and screwing the look of the rest. But when i look at the spare [new] but i think an original it is a 15 inch. so can anyone tell me what size my car had on when it first came out as i would like to go back to the size bmw said it should be. Thanks.