Hi, I think you’ll have to take the portion size your customer wants eg 2″ × 2″ × 2″ and multiply it – so 9 × 2 = 18 . So an 18″ × 9″ car will give 9 × 4 = 36 portions from the first layer. Then depending on how tall your car will be – you’d have to make a template – you could work out how many more portions you’d get.
It is going to be one mahoosive car though – I would try to convince your customer to have a car on top of a big square cake to get enough portions.
Mike McCarey has an amazing tutorial on Craftsy – Classics car but it is very big and teaches great techniques :-D:-D.
Hope this helps – also you’d have to charge so much money for a car that size!!
Lulu
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