I had another crack at it after some sleep, and yeah, I'm pretty happy with it now. Made more use of the interesting layered effect that featured mostly in the rear of the last version, and connected the bodywork with the circuitry to give it a more cohesive look.
[img=http://img21.imageshack.us/img21/1466/shortcurcuit.th.jpg]
It's got a really nice translucent feel, as though the body's made from clear perspex! Of course, that's what I set out to do... *cough cough
edit - Thanks Roadrash, but I wouldn't want to get in trouble when I'm soo close to getting a license. Just waiting for the bank to send out my new card!