The video shows a technique for modifying an existing sketch in Photoshop using the Warp tool.

A visual walkthrough of the creation process of side vents starting from a reference photo.

Official video that shows some traditional and digital sketching stages in the design process of the new Renault Laguna.

A quick digital sketch walktrough, made with a Wacom tablet.

A visual walkthrough that shows the creation process of a digital painting of a futuristic environment complete with vehicles.

German product designer Christian Grajewski shows his technique for creating a digital environment speed-painting.

A walktrough of a car sketching made with a Wacom tablet. The use of the airbrush tool emphasizes the car volumes.

This tutorial shows a a technique for sketching in Autodesk SketchBook Pro. The author is Michael Smith, who graduated from the College for Creative Studies in Detroit in 1999.

A visual walkthrough of the main steps involved in the creation of a digital car rendering starting from a handmade sketch.

This tutorial shows how to create a photorealistic body kit using digital airbrushing in Photoshop.