Hell, I've just thought of a solution to this....
If we had the Car of the week as a specific Showcase that people uploaded the images to. We could then set a specific image size for that showcase (if you can, otherwise is it easily hackable in code, even if its as simple as (for example)
Code:
if ($ShowCaseID == 3)
{
$max_height = 250;
$max_width=650;
}
Or to that effect? Until an option to set different image dimensions per showcase is added?
I forgot to see if its a global setting or not, but can you choose to hide a particular showcase on the postbit? Obviously we wouldn't need to see 'Car of the week' as a showcase in that way.