TVR Cerbera - 10 min sketch from a dull meeting scanned and rendered in 20 mins in Photo shop.
Fast back Saloon - Black coloured pencil sketch on tracing paper, scaned in and rendered using Photoshop 7
Ferrari Sketch - Markers and pastels over a biro sketch. It was an idea for a sort of "Enzo" roadster but with hints of the old sharknose F1 cars.
This sketch will soon be the subject of a tutorial on www.designertechniques.com