First,let me say I love the renderings,Carter certainly does some fine work.
That being said,I'd paint that badboy one solid color rather then the two-tone design which is so Chip Foose overdone nowadays...in my opinion.If it were mine,I would lean more towards something like Sublime Green or an Orange or Yellow with a carbon-fiber black hood...but it's not,so do whatever you like best.
and more updates,please!