I think 2m x 1m is too small - 3x1 would be better if we want it to show up at shows & things and shouldn't cost much more.
Agreed, time to narrow down on design and if we decide to raise more funds, at least we can work out our target and aim for it.
I also like the black one, but would like to see what it would look like with blue fonts instead of red (keeping the tail lights red of course) for comparison - I might still go back to red for final decision, but would like a look - an extra colour will add extra to the cost as well, but not excessive.