I would end up spending too much time to get it perfect to the picture, which is striving for photorealism. A sketch wouldn't be good enough for me. The Mclaren is the second time I've done something like that, and I really don't enjoy doing it. I'd rather sketch something following a design brief, not spending countless hours hunched over a magazine and sharpening my pencil over and over again.
What do you mean it is not either?